Mathematics High School

solve the system of linear equations by graphing ​

Solve The System Of Linear Equations By Graphing

Answers

Answer 1

9514 1404 393

Answer:

  (x, y) = (-3, 4)

Step-by-step explanation:

The graph shows the solution is (x, y) = (-3, 4).

__

I find using a graphing calculator the easiest way to solve a system by graphing.

Each of these equations is in slope-intercept form, so graphing can be done by locating the intercept point (y=-2, y=1, for the two equations), then plotting a line through that point with the appropriate slope. Of course, the slope is the x-coefficient, and represents the "rise" for a unit of "run" to the right. Here, both lines go down to the right.

Solve The System Of Linear Equations By Graphing

Related Questions

hi cn i pleas have help on this question

Answers

Answer:

396 cm squared

Step-by-step explanation:

10*27=270 cm squared

9*14=126 cm squared

Answer

i think its 486cm squared

Step-by-step explanation:

9*24=216cm

10*27=270cm

216cm+270cm=486cm squared

but im exactly sure

A person traveling 60 feet per second is traveling how fast, in miles per hour?​

Answers

Answer:21,600 feet per hour

Step-by-step explanation:

60*60=360 (multiplying the distance traveled per second by the number of seconds in a minute to get how far the person traveled in a minute)

360*60=21,600 (multiplying the distance travels in a minute by the number of minutes in an hour to find the total distance traveled in an hour)

Giving brainliest!!!!!!!!

Answers

Answer:

I'm not sure but I think it is A.

The number of Ava's coins is x. The number of Ava's coins is more than 15. so x is more than 15.

x > 15

Answer:

A

Step-by-step explanation:

Since Ava has more than X coins in her collection then 15 is the amount she used to have so

x> 15

t + 8/10 = 9/10
i need the value of t please

Answers

Answer:

1/10

Step-by-step explanation:

Answer:

t = 1

Step-by-step explanation:

When you cross multiply the equation becomes:

10(t+8)=10(9)

Now, solve for t.

10(t-8) = 10(9)

10t+80= 90

   -80    -80

   10t÷10  =   10÷10

           t = 1

What is the difference between the 8th square number and the 7th square number?

Answers

8 squared is 64 and 7 squared is 49 so 64 - 49 = 15

question is in picture ​

Answers

Answer:

6

Step-by-step explanation:

the first thing I did to smome but you know 5AM was a l

Rachel has 2/3 pound of snack mix. She eats 5/12 of the snack mix. How much of the snack mix did Rachel eat?

Answers

Answer: Racheal ate [tex]\dfrac{5}{18}[/tex] of the snack mix.

Step-by-step explanation:

Given : Rachel has [tex]\dfrac23[/tex] pound of snack mix..

If she ate [tex]\dfrac5{12}[/tex] of the snack mix.

Then, Quantity of snack mix eaten by Rachel = [tex]\dfrac5{12}\times\dfrac23[/tex]

[tex]=\dfrac56\times\dfrac13\\\\=\dfrac{5}{18}[/tex]

Hence, Racheal ate [tex]\dfrac{5}{18}[/tex] of the snack mix.

Robin baked 702 cookies.He sold them in boxes of 18. After selling all of the boxes of cookies for the same amount each, he earned $136.50.what was the cost of one box of cookies

Answers

Answer:

cost of a box is $3.5

Step-by-step explanation:

given data

sold box = 18

earned = $136.50

solution

we consider here number of boxes of cookies is x

and

for we get Tyler sold  cookies box so number of boxes we divide 702 cookies among 18 is

Tyler sold  = [tex]\frac{702}{18}[/tex]

Tyler sold  = 39 boxes

and

now we consider here y as cost of each box of cookies,

so for cost or sale price of the cookie boxes here we divided 136.50 dollars among 39 boxes

so

cost of each box = [tex]\frac{136.5}{39}[/tex]

cost of each box = 3.5

Thus, the cost of each box was 3.5

Write 5√4 using rational exponents.

Answers

Answer:

A. [tex] {5}^{ \frac{1}{4} } [/tex]

Step-by-step explanation:

[tex] \huge \sqrt[4]{5} = {5}^{ \frac{1}{4} } [/tex]

how do I find the area

Answers

split the figure into a rectangle and trapezoid, the rectangles area is 9 * 6 or 54 and the area of the trapezoid is (11 + 6) divided by 2 so 8.5 * 9 or 76.5

76.5 + 54 = 130.5

Answer:

105cm2

Step-by-step explanation:

area= area f rectangle + area of trapezium

        = (6x9)+( [tex]\frac{6+11}{2}[/tex]x6)

         = 54+51

        = 105 cm2

When a number is decreased by -8 and the result is -20. What is the number? THANKS you for your help

Answers

-12-8=-20. snnsdbdbjsns

Answer:

-12

Step-by-step explanation:

To decrease by -8 is to subtract, therefore x-8= -20. When you add 8 on both sides, the answer is -12.

What is the Slope of the line given the Linear Equation y=3x -1

Answers

Answer:

The slope is 3.

Step-by-step explanation:

In the line y=3x-1, the slope would be 3.

slope=3
The slope intercept form is y=mx+b. Remember m is the slope, so therefore 3 is the slope of this equation. Hope it helped :)

Which term best describes the graph of y = x - 1

A. Increasing
B. Decreasing
C. Constant
D. Positive

Answers

A (it’s a slight increase)
if you have a TI-84 calculator you could solve this problem in seconds.

2. What is the equation for this line in "Slope Intercept Form" *

Answers

The answer is y=2x-2

Graph the function. Then, identify the domain and range of the function.
f (x) = (x + 3)^1/2+ 1

Answers

Answer:x=5

Step-by-step explanation:

Answer:

Below.

Step-by-step explanation:

The graph will begin at the point (-3, -1)  and will curve to the right, passing through the y axis at (0, (1 +√3)). It will slowly rise to the right.

Domain  is [-3, ∞).

Range is [1, ∞).

Write an equation of the line in slope intercept form

Answers

Answer: y = x + 2 OR f(x) = x + 2

Step-by-step explanation:

Calculating slope:

Remember rise over run; when going from one point to another point, in this case from (-3, -1) to (0,2), locate the distance moved in the x and y directions. This scenario moves 3 up and 3 right, meaning a positive slope of one. However, if the line was directed left, your slope would be negative.

Finding y-intercept:

Where does the line intersect the y-axis and have a x-value of 0? This is your y-intercept --> (0,2).

Write Equation:

y = mx +b

y = 1x + 2

y = x + 2 (your final answer)

.
g. When f(x) = 0, what is the value of x.

Answers

Answer: x=0

Step-by-step explanation:

Austin has $75 to spend on sporting goods. He wants to buy a soccer ball for $12 and spend the rest of the
money on soccer shorts. Each pair of soccer shorts costs $19. Which inequality can be used to find s, the
number of pairs of soccer shorts he can buy?
a. 12 + 195 $ 75
c. 19 + 12s < 75
b. 12 +195 2 75
d. 19 + 12s 275

Answers

Answer:

s = 3 He can only but up to 3 pairs of shorts, with 3 dollars left over.

Answer is 12 + 3s <= 75

Step-by-step explanation:

$75 - $12 = $63

$63 / $19 = $3.3157894 about 3

$3 * $19 = $57

$57 + $12 = $69

$72 - $69 = $3

Given that
P
=
x
−
y
.
Find
P
when:
x
=
−
12
and
y
=
−
19

Answers

Answer:

P=7

Step-by-step explanation:

P=x-y

 =-12-(-19)

 =-12+19

 =7


Me ayudan explicándome esto o igual nose algunas respuestas

Answers

Answer:

Step-by-step explanation:Subscribe to my channel thatgirl.christinak for a giveaway

Which ordered pair would form a proportional relationship with the point graphed below?


On a coordinate plane, a line goes through points (0, 0), (10, 40) and (negative 10, negative 40).

Answers

Answer:

the answer is c

Step-by-step explanation:

HOPE THIS HELPS

Answer:

The answer is c

Step-by-step explanation:

I did the test on edge


3. Find2/7-3/7 - 5/14

Answers

Answer:

-1/2 ignore this widjsnwnsisiahwndmd

If the area of a triangle is 36 in.^2in.
​2
​​ and the base is 9 in., what is the height of the triangle?
A
72 in.

B
4 in.

C
8 in.

D
18 in.

Answers

c. 8 inches. I hope I'm not too late

PLEASE HELP!!! MATH WHIZZESSSS NEEDED!!! IT IS IN THE PITURE!!!

Answers

Answer

B. 3, 915, 700, 000

Step-by-step explanation:

You are correct.

3.9157E + 9 means that there are 9 digits after the decimal point.

A new hotel in town purchased 10 new flat screen televisions for $10,575.50 for their suites. How much did each television cost?

Answers

Answer:

1057.55

Step-by-step explanation:

10,575.50 / 10 = 1057.55

Help I’m bad at math and need to get my grade up

Answers

I’m doing my edguinity too omggg but yea Ima just say the second one too

On a 3-week vacation to Paris, Martha's expenses for food, gifts, and accommodations was 80$ less than 3 times her airfare. If the total expenses for the trip was 2, 660, how much was her airfare

Answers

Martha’s airfare is$2410

Determine whether the representation is proportional. y = -9x

Answers

Answer:

Yes, they are

Step-by-step explanation:

y = -9x

Here y∝ x

Where -9 is constant of proportionality

If "y" increases by factor of 2, then "x" will also increases by factor of 2. Hence, y and x are " directly proportional" to each other.

Which expression is equivalent to 4x – 5 ?
Select all that apply.
A 7x +1 -3(2+2)
B 3x – 2 – (3 – x)
C4(2x - 1) - 2(2x - 1)
D 3(2x - 5) – 2(x – 5)

Answers

Answer:

I think it's D.........

ABCD is a parallelogram. If side AB = 5x + 7, side BC = 8x - 12, and side CD = 7x - 9, find the value of x.

Answers

Answer:

8cm

Step-by-step explanation:

AB = CD

5x+7 = 7x-9

2x = 16

Other Questions
Where do most of Central Africas people live? How do they make their living? What will most likely happen to a native species if an exotic species out competes it for food?The native species will become extinctThe native species will adapt to less foodThe native species will find another food sourceThe native species will use the exotic species for food :> Plz help I only have 6 min left hurry plz Read the scenario below and answer the question that follows.For history class, Marlena is writing a paper on President Andrew Jackson's treatment of minorities, namely AfricanAmericans and Native Americans. During her research, she finds the archived journal of one of his numerous,African American slaves on his Tennessee plantation. The slave talks about daily life as a servant and does notspeak highly of President Jackson.What type of source did Marlena find during her research?A. The journal is a primary source.B The journal is a secondary source.C. The journal is a newspaper.D The journal is a history textbook. What is the material through which a wave travels? 1. In order to determine how many hours per week freshmen college students watch television, a random sample of 256 students was selected. It was determined that the students in the sample spent an average of 14 hours. The standard deviation is 3.2 hours per week for all freshman college students.a.Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. The graph below represents a library fine, in dollars, for a book returned late after a number of days overdue.A graph titled Library Fines. The horizontal axis shows days overdue and the vertical axis shows the fine (dollars). The line shows an increase to $10 at 19 days overdue, then constant.Christen returned an overdue book to the library. Her fine was the same as the amount on the following day. Out of the fines show below, which one would be closet to the number of days overdue?10141821 32h+24=-3h-11h what is the solution 2. The equation y = 8x gives the points, y, earned by reading books.Use this equation to find the number of books Stephanie read to earn 72 points. Show your work.(Hint: Which variable can you substitute 72 for in y= 8x?)Write your answer in the space below. In 1835, the Americans in Texastaunted the Mexicans with a white flag hanging on a cannon that had what written on it?A. Come and take it!B. Go home!C. You can't have it! A statistically significant result in a psychology experiment refers to aA. flawed research designB. finding likely due to chanceC. finding not likely due to chanceD. finding that challenges a previous workE. result that suggests a correlation equal to 1.0 Good morning!I am here with a few geometry questions today. There is 2 steps to this.Step 1: The city plans a new road that will be parallel to Brodie Lane. What is the slope of the new road?Step 2: Let m6=[tex]x^{o}[/tex]. Which angles have a measure of 180-x?Use the diagram below to help!When you answer this question please be sure to explain your answer and show work.Good luck! Have a great day! PLS HURRY RIGHT ANSWER WILL BE BRAINLIESTShortly, somethin come up behind John. Then it walked on by him. It was a black, shiny cat, walkin in out of the rain. It was blacker than night and blacker than coal, too, that black cat was. And it eased over to the fireplace. And it sat right down in the fire. Picked up a red-hot coal in its paws and stuck out its tongue and licked at the coal. Just like lickin some milk, it did too lick that red-hot coal! John not sayin a word, not payin that cat any mind atall. He had cats at home. But none lived in his house. Nor sat down in a blazin fire and licked up a hot coal. He said his prayers like he was supposed to, but a little faster now. As quick as a crack of the fire, a long shadow fell over John. It walk around him. The shadow turn out to be a cat, too, only this cat was no kind of house cat. This cat was as big as a huntin dog. Black as coal and his collar fur standin up on his shoulders. The great big cat sat down in the fire and picked up a live, red coal. And he dusts his cheeks with it like that burnin coal lust a powder puff. He powders his nose with it, and as proper as you please.Better Wait Till Martin Comes,Virginia HamiltonWhat repeated plot element creates suspense in Better Wait Till Martin Comes?A. Each cat is a different color than the last.B. Each new cat is larger in size than the last.C. Each piece of coal is hotter than the last.D. Each new chair breaks when sat upon. Dactyl is another word for: At the school book sale, Michael bought 3 books for $6. Darnell bought 5 books for $10. Are these rates equivalent? Explain your reasoning. In "A Whole New World," why does Tanisha's father give up showing her how to use the camera? A-She appears confused. B-She asks him to stop. C-She already mastered using it. D-She appears disinterested. If you see a variable by itself what number is actually there but is invisible? Read the lines from a student's book report. This is a historical novel set in the early 1900s. Many lifestyle details are included in the book. Readers learn about transportation, clothing, and entertainment of the era. Which lines best show that the writer has adjusted the writing for a younger audience? This is an important work of fiction that explores life at the turn of the century. Readers will enjoy reminiscing about the fads and fashions of yesteryear. Sociologists say that although life was physically more demanding years ago, people who lived back then were generally less stressed than people today. Historical fiction gives readers a look back in time. It is important to note patterns and trends that affect society today. This book is about life in the old days. Readers can learn about horse and buggy rides, long woolen underwear, and old-fashioned games. QuestionExpress the inequality a -0.12 using interval notation.Provide your answer below:FEEDBACKMORE INSTRUCTIONContent attribution can you please answer this? i dont understand A spring with a spring constant of 500 N/m is stretched 1 meter in length. How much elastic potential energy does the spring have stored in it?