The slope of the line that contains the points (1, -1) and (2, 3) is 4. What is the y-intercept?

Answers

Answer 1
y- intercept =-5
y-y1=m(x-x1)
y-(-1)=4(x-1)
y+1=4(x-1)
y+1=4x-4
y=4x-4-1
y=4x-5
Or
y=4x+b
-1=4(1)+b
-1=4+b
-1-4=b
-5=b. Y-intercept is -5
Answer 2

The y-intercept of the line is -5.

What is an equation of a line?

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

We can use the slope-intercept form of a linear equation to find the

the y-intercept of the line.

The slope-intercept form of a linear equation is:

y = mx + b

where m is the slope of the line, and b is the y-intercept.

We are given the slope of the line that contains the points (1, -1) and

(2, 3) is 4.

Therefore, we can substitute m = 4 and one of the points into the equation, and solve for b.

Let's use the point (1, -1):

y = mx + b

-1 = 4(1) + b

-1 = 4 + b

b = -1 - 4

b = -5

The y-intercept of the line is -5.

The equation of the line in slope-intercept form is:

y = 4x - 5

Thus,

The y-intercept of the line is -5.

Learn more about equation of a line here:

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Related Questions

please help i don't understand this

Answers

Answer:

x=12

a=48

b=82

c=50

Step-by-step explanation:

ik its long but PLEASE HELP!

Answers

IMAGE 1:

The object is 3 units tall, 7 units long, 2 units wide.

3 * 7 * 2 = 42

Answer is 42 cubic units.


IMAGE 2:

Let’s start with the smaller figure first.

The figure is 2 m tall, 6 m wide, and 5 m long.

2 * 6 * 5 = 60

Answer is 60 cubic meters


IMAGE 3:

The aquarium is 5 ft long, 4 ft wide, 2 ft deep (tall).

5 * 4 * 2 = 40

The volume is 40 cubic ft
The volume is 40 cubic ft

Pls help meh Area of a Circle (rounded)
TROLL FOR POINTS= REPORT

FIRST AND CORRECT ANSWER= BRAINLIEST

( NO LINKS )

Answers

Answer:

28.27 or 28 for rounded

Step-by-step explanation:

Pi r^2  pi(3)^2

28.27 or it’s either 28 hope that helped

Ten Points
Look at the rectangle and the square:

A rectangle PQRS and square LMNO are drawn side by side. The length SR of the rectangle is labeled as 12 inches, and the width QR is labeled as 6 inches. The side LM of the square is labeled as 6 inches
Sam says that the length of diagonal SQ is two times the length of diagonal OM.

Is Sam correct? Justify your answer and show all your work. Your work should state the theorem you used to find the lengths of the diagonals.

Answers

Answer:

False

Step-by-step explanation:

Let's consider the triangle SQR. We know it is right-angle because part of the rectangle PQRS. We can use the Pythagorean theorem:

[tex]SQ^{2} = RQ^{2} + SR^{2} \\SQ^{2} = 36 + 144 = 180\\SQ = \sqrt{180} = 13,4[/tex]

We can do the same for the square in which ON = 6 because it's a square:

[tex]OM^{2} = MN^{2} + ON^{2} \\OM^{2} = 36 + 36 = 72\\OM = \sqrt{72} = 8.5[/tex]

Now let's compare them:

8.5 X 2 = 17 so OM X 2 is not equal to SQ

The sentence is false.

PS : Sorry for the misspelling, I'm French =)

Giving brainliest! This is very urgent :))

Answers

Answer:

3/4 and 6/8

Step-by-step explanation:

The ruler is split into 8 parts, and this point is 6/8 of the ruler, if you simplify that fraction you get 3/4.

Answer:

3/4 and 12/16

Step-by-step explanation:

If you see there are 8 ticks. So it will go 1/8 to 8/8 or 1. Then you see the arrow is at 6/8. So you divide both by 2 to get 3/4 and multiply by 2 to get 12/16.

HELP PLS AND EXPLAIN:
y= 4x + 7
2x + y = 7

A. one solution

B. no solution

C. infinitely many solutions

Answers

C.infinitely many solutions

please help will mark brainliest! (random answers will be reported)

Answers

Answer:

B

Step-by-step explanation:

Sorry if I am incorrect!

Y is what times X? No explanation please. Thank you.

Answers

Answer:

0x4, 0x8

Step-by-step explanation:

Answer:

y= 1/4x

Step-by-step explanation:

Hello! Can someone please help me with this?
Solve Equations for Unknown Angles

Answers

Step-by-step explanation:

For the first one for A, B, C its the explanation in the left corner

During a 5th grade field trip to the Museum, Ms. Jones bought 33 student tickets and one adult ticket for herself. Her ticket cost $3.00 more than a student ticket. She spent a total of $300.50.Enter, in dollars, the cost of a single student ticket

Answers

Answer: $ 9.02 I think (Might be wrong)

I believe it is 9.01

Im almost done but I need help :)

Answers

Answer:





Explanation: D:
It’s D because if he do

Helene spends 25% of her budget on transportation expenses. Enter this percent as a decimal and as a fraction in simplest form.


25% written as a decimal is
and written as a fraction is

Answers

decimal form is (.25)
and as a fraction it is (1/4)

A total of 76 students responded to a survey about transportation to school. Of the girls surveyed, 22 walk to school and 29 get a ride. Of the 25 boys surveyed, 9 get a ride to school. Construct a two-way frequency table to display the data. Drag the numbers into the boxes. Each number may be used once, more than once, or not at all.​

Answers

Answers:

From as I can see. You need to do a long division on 76 and 9 and then if you got the answer subtract the answer with the girls surveyed and you'll get the answer and multiply the answer with the boys surveyed and then add all the answers together. Hoped this help!!! :)

The problem we are working is:

Sara’s boss informed her she is getting a 5% raise. She currently makes $22 per hour. What is her new hourly wage?

Use your plan of multiplying 5100 and $22. What is the amount of Sara's raise?

Answers

Answer:

Her new hourly wage will be $23.10

Step-by-step explanation:

First, let's find out how much her raise is in dollars.

0.05 x 22 = 1.10

Then, let's add that to her current wage.

1.10 + 22.00 = $23.10

Hope this helps! Have a great Monday!

Answer:

Her new hourly wage will be $23.10

Step-by-step explanation:

5/100 * 22= 1.1

1.1 + 22= 23.1

$23.10

$350, 33% mark up.
LAST QUESTION!!! BRAINLIEST AND 25 PTS

Answers

Answer:

350*33%= 115.5

350+115.5= $465.50

the Mark Up Price is $465.50

Step-by-step explanation:

PLZ HELP I NEED IT IN 9 MIN

Answers

Answer:

d

Step-by-step explanation:

1. A 25% discount on a skateboard is $24.75. What is the cost before the discount?
2.At a music store, Rita got a $12 discount on an item originally priced at $48. What percent discount did she get?
3.Masako had a $25-off coupon on a purchase of $100 or more at a department store. She bought a jacket for a price of $125. What is the percent discount on her purchase?
Background info for 4: Masako’s sister Kazuko also had a $25-off coupon. She bought a rain jacket for $110 at the same store.
4.Which sister got the greater percent discount?
Background for 5 and 6: Aladar used a 20%-discount coupon to buy a new smartphone priced at $95. When he got to the telecom store, he learned that they were having a 30%-off sale. The clerk calculated the 30% discount first and then applied the 20%-off coupon to the discounted amount.
5.What should be the final price (without sales tax)?
6.If there was an 8% sales tax what would the new final price?

Answers

1.   x-x*0.25=24.75

x=33

2.   48+12=60

12/60=1/5

20 percent discount

3.  25/125=1/5

20 percent discount

4.

Both got same discount

40 points!
What are the steps to finding areas?
Trapezoid:
Rectangle:
Circle:
Triangle:

Answers

Answer:

Trapezoid: So basically to find the area of a trapezoid, multiply the sum of the bases (the parallel sides) by the height (the perpendicular distance between the bases), and then divide by 2.

Rectangle: To find the area of a rectangle, multiply the length by the width. The formula is: A = L * W where A is the area, L is the length, W is the width, and * means multiply.

Circle: The area of a circle is pi times the radius squared (A = π r²).

Triangle: To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles.

I totally agree with the person below me said I think that is a decent anwser and that’s something I would say also so yes that is correct .

1. An angle bisector of a triangle is also an altitude. Prove the triangle is isosceles.
2. A median of a triangle is also an altitude. Prove the triangle is isosceles.
3.Prove that corresponding altitudes in congruent triangles are congruent.
Use statement reason proof for these questions. Do not do random answer for points or i will report you

Answers

Answer:

Step-by-step explanation:

.............................answer

Answers

Answer:

30

Step-by-step explanation:

If w=6, you need to multiply 5 by 6 to get 30.

the answer would be 30 good luck

The measures of three line segments are given in each set.

Which set of line segments cannot form a triangle?


20.2 m, 20.4 m, 20.6 m

32.8 m, 48.2 m, 81.1 m

12.8 m, 25.7 m, 35.9 m

35.6 m, 49.9 m, 83.2 m

Answers

Answer:

second option: 32.8 m, 48.2 m, 81.1 m  

Step-by-step explanation:

20.2 m + 20.4 m = 40.6 m.  which is bigger than 20.6 m. so yes  

32.8 m + 48.2 m = 81 m.  which is smaller than 81.1 m. so no  

12.8 m + 25.7 m = 38.5 m. which is bigger than 35.9 m. so yes  

35.6 m + 49.9 m = 85.5 m. which is bigger than 83.2 m. so yes

I really need help with this:)

Answers

Answer:

I think it is b because dimension are measurable extent

Answer:

B

Step-by-step explanation:

The answer is B, because the second scale is half that of the first, so if you half the length and width you get 4.5 and 2.5

30 points
Which function does the graph represent?

f(x) = (x – 2)2 + 3
f(x) = –(x – 2)2 + 3
f(x) = (x + 2)2 + 3
f(x) = –(x + 2)2 + 3

Answers

Answer:

I think id be the last one

Step-by-step explanation:

The graph would represent f(x)= -(x+2)2+3 which is the last one

can you help me plssss

Answers

Step-by-step explanation:

57° + x + 23° = 180° { being linear pair }

80° + x = 180°

x = 180° - 80°

x = 100°

Hope it will help :)❤

Answer:

4.35

Step-by-step explanation:

180-57=123

123-23=100

100 ÷ 23=4.347826

rounded to 4.35

EXPERT HELP I'LL GIVE BRAINLIEST: EXPLAIN THE ANSWER

Answers

Answer:

D: A prediction based on data is reliable, because the means of the samples are close together.

Step-by-step explanation:

I got it right:)

Find the surface area of the following triangular prism.



surface area = ___ ft2

Answers

Answer:

144

Step-by-step explanation:

[tex] \frac{1}{2} \times 8 \times 6 = 24 {ft}^{2} [/tex]

[tex]8 \times 4 = 32 {ft}^{2} [/tex]

[tex]32 \times 3 = 96 {cm}^{2} [/tex]

[tex]96 +(24 \times 2) = 144 {ft}^{2} [/tex]

Answer:

336 ft2 is the correct answer.

Step-by-step explanation:

A 12-pound bag weighs more than a 200-ounce bag. True or false?
Question 9 options:
True
False

Answers

Answer:

False. A 200-ounce bag would weigh more than a 12-pound bag.

Hope this helps!

The statement "A 12-pound bag weighs more than a 200-ounce bag." is True.

What is Unit Conversion?

The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.

Given:

A 12-pound bag weighs more than a 200-ounce bag.

As, we know

1 pound = 16 ounce

So, the weight of bag in ounces

=12 pound

= 12 x 16

= 192 ounce

So, the statement is True.

Learn more about Unit Conversion here:

https://brainly.com/question/16174061

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write an equation of the line that is parallel to points (-3,3),(0,1) and passes through the point (0,9)?? help lol

Answers

Answer:

Upload photo math it's really helpful for math equations

first find the slope :

m= (1-3)/(0-(-3))
m= -2/3

then plug that slope and (0,9)into point slope form to get
y-9 = -2/3(x-0)


but if you want slope intercept form the simplify further

y-9= -2/3x
y=-2/3x+9

PLEASE HELP ASAP!!! PLEASE!!!!
The graph shows the prices of different numbers of bushels of corn at a store in the current year. The table shows the prices of different numbers of bushels of corn at the same store in the previous year.

A graph shows the Number of Bushels on the x-axis and the Price of Corn in dollars on the y-axis. The x-axis scale is shown from 0 to 14 at increments of 2, and the y-axis scale is shown from 0 to 98 at increments of 14. A straight line joins the ordered pairs 2, 14 and 4, 28 and 6, 42 and 8, 56 and 10, 70 and 12, 84.
Previous Year
Number of Bushels
Price of Corn (dollars)
2
10
4
20
6
30
8
40
Part A: Describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value.
Part B: How many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? Show your work.

Answers

Answer:Part A:8  Part B:$1

Step-by-step explanation:

Part A: 7 dollars  

- The graph shows that 2 bushels is 14 dollars,  because the graph has a straight line, the rate remains constant you must divide the sides by two to find the amount for one bushel which would be 7 dollars.

- And to double check you would divide 28 by 4, 42 by 6, 56 by 8, 70 by 10, 84 by 11, and 98 by 12. they all equals 7 dollars So, the equation would be y = 7x.

- 7 can be known as the slope and  rate of change.

Part B:2 dollars

- The years before show 2 bushes was 10 dollars

-so you would divide 10 by two you would get five  To double check you would do the same thing with 20 by 4, 30 by 6 and 40 by 8, and they all equal 5 dollars.

-if you use this answer be sure to reword it so you dont get copy write and integrity. have a great day or night.

if the volume of the solid below is 378 cubic inches, what is the height of the solid?​

Answers

Answer:

54

Step-by-step explanation:

8.89
When you round it to the nearest tenth it’ll be 9.
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