Mathematics High School

Use the given information to write the equation of a line.
slope = -2 and passes through through (1,1)

Answers

Answer 1

Answer:

y = -2x - 1

Step-by-step explanation:

If you already know the slope. Just find out the y-intercept. Plug the coordinates into the equation.

y = mx + b

y = -2x + b

1 = -2(1) + b

1 = -2 + b

-1 = b

Related Questions

Cell phone Plan A costs $60 per month and comes with a free $500 phone. Cell phone Plan B costs $50 per month but does not come with a phone. If you buy the $500 phone and choose Plan B, how many months is it until your cost is the same as Plan A's?

Answers

Answer:

hi

Step-by-step explanation:

60x=50x+500
-50x=-50x+500
10x=500
500/10 = 50

It would take 50 months for your plan to be the same as A

f m∠ 4 = 2x° and m∠ 5 = 4x°, what is the value of x?
a. x= 20
b. x = 30
c. x = 60
d. x = 120

Answers

Answer:

Step-by-step explanation:

∠5 + ∠4 = 180°

4x° + 2x° = 180°

6x° = 180°

x = 30

The mean age of 5 people in a room is 27 years.
A person enters the room.
The mean age is now 27.
What is the age of the person who entered the room?

Answers

The answer is 135
27 x 5=135

Answer:

thee answer is 27

Step-by-step explanation:

As the first part was 27 and the second pARTR 27 NO MATHS NEED TO BE INCLUDED AS 27 IS THE CORRECT

PLS HELP MEEEEE!!!!!

Answers

Answer:

102.3

Step-by-step explanation:

When multiplying dont consider the decimal point, multiply normally then add in the decimal point, youll know how because you count how many numbers/spaces after the decimal and that'll be where you put the decimal point from the right

Answer:

It should be 102.3 (click on the photo to see work)

Step-by-step explanation:

I hope this helps!!

I need help plz help me !!

Answers

Answer:

110

Step-by-step explanation:

y = 11/6x where x is in minutes

there are 60 minutes in an hour

plug in 60 as x

11/6 *60 = 11*10 = 110

Answer:17

Step-by-step explanation:

Someone please help meee

Answers

(1, -4)

You could just count the units

The answer should be (1,-4). Hope this helped!

15 : The world population in 2010 was approximately 6.92 billion.
The annual rate of increase was about 1.0235. Find the world population in
2020.

Answers

A number that can be written

help please Write two numbers that multiply to the value on top and add to the value on bottom.

Answers

id be 7 and 1 cuz they add to 8 and if multiplied it’d be 7

Please help me I just don't understand!!!!!!!!!!!!!

Answers

Answer:

240pi

Step-by-step explanation:

find the length of AB on the kite?

Answers

I don’t know thrhehajjahajahdjebwhahabwvdksjabab

9 tens eqaul's how many ones? someone please help

Answers

Answer:

9 tens will be 90 (9x10=90) so there will be 90 ones

Step-by-step explanation:

I think that's what you are asking right?

Answer:

you are 100 percent correct

Solve for y
what is 3x +2y =x +2(2y-3z)

Answers

Answer:

y  =  x  +  3 z

Step-by-step explanation:

Juan sells 3 oranges for every 2 apples. How many apples should Juan expect to sell
when Juan sells 15 oranges:

Answers

Answer:

10 apples

Step-by-step explanation:

We can write a ratio to solve

3 oranges     15 oranges

--------------- = -----------------

2 apples           x apples

Using cross products

3x = 2 * 15

3x = 30

Divide by 3 on each side

3x/3 = 30/3

x = 10

Answer:

He can expect to sell 10 apples

Is it A) 5 or C) 1/5?

Answers

Answer:

5

Step-by-step explanation:

What is the answer please + explanation

Answers

Answer:

86π

Step-by-step explanation:

A=2πrh+2πr2

A=2π*16+2π*4*7

A=32π+54π

A=86π

Hope this helps :)

To solve the equation below, you would?
X – 70 = 135
A) add 70 to each side
B) subtract 70 from each side
C) multiply each side by 70
D) add 135 to each side

Answers

Step-by-step explanation:

step 1. x - 70 = 135

step 2. x = 205. add 70 to each side

Someone plz HELP ME
Don't skip this question I'M STUCK
Drawing box and whiskers plots
​

Answers

Answer:

Water is added to liquid isopropanol (a polar liquid) to form a solution of rubbing alcohol. Describe what happens on the molecular level as the water dissolves in the isopropanol.

Step-by-step explanation:

I need answers to this

Answers

Answer:

x = -5, and y = -6

Step-by-step explanation:

Suppose that we have two equations:

A = B

and

C = D

combining the equations means that we will do:

First we multiply both whole equations by constants:

k*(A = B) ---> k*A = k*B

j*(C = D) ----> j*C = j*D

And then we "add" them:

k*A + j*C = k*B + j*D

Now we have the equations:

-x  - y = 11

4*x - 5*y = 10

We want to add them in a given form that one of the variables cancels, so we can solve it for the other variable.

Then we can take the first equation:

-x  - y = 11

and multiply both sides by 4.

4*(-x - y = 11)

Then we get:

4*(-x - y) = 4*11

-4*x - 4*y = 44

Now we have the two equations:

-4*x - 4*y = 44

4*x - 5*y = 10

(here we can think that we multiplied the second equation by 1, then we have k = 4, and j = 1)

If we add them, we get:

(-4*x - 4*y) + (4*x - 5*y) = 10 + 44

-4*x - 4*y + 4*x - 5*y = 54

-9*y = 54

So we combined the equations and now ended with an equation that is really easy to solve for y.

y = 54/-9 = -6

Now that we know the value of y, we can simply replace it in one of the two equations to get the value of x.

-x - y = 11

-x - (-6) = 11

-x + 6 = 11

-x = 11 -6 = 5

-x = 5

x = -5

Then:

x = -5, and y = -6

GIVING 20 POINTS AWAY PLEASE HELP ME WITH THIS QUESTION ASAP!!

Answers

Answer:

D 144 in hope this helps you on your test

Find the slope between (-1,4) and (2,3)

Answers

Answer:

-1/3

Step-by-step explanation:

slope=y2-y1/x2-x1=3-4/2--1=-1/3

Please find the square root of this non perfect square please

Answers

Answer:

1.41421

Step-by-step explanation:

Determine the equation of the line passing through the points A(–1, 6) and B(2, 4).

Answers

Answer:

y = -2/3x + 5 1/3

Step-by-step explanation:

Find the slope:

4 - 6 / 2 - (-1) = -2/3

Put it in point-slope form:

y - 6 = -2/3(x + 1)

rearrange:

y - 6 = -2/3x - 2/3

y = -2/3x + 5 1/3

Distribute
(x-6)(x-7)

a) x^2-13x-15
b) x^2-13x+42
c) x^2+x+42
d) x^2+x-15​

Answers

Answer:

B. x² - 13x + 42

Step-by-step explanation:

A rectangular garden measures 9 feet wide by 12 feet long. If a hose costs $8 per foot, how much would it cost to place a hose
through the diagonal of the garden?

Answers

Answer:

120

Step-by-step explanation:

using the pythogorean thereom, we have 12^2+9^2=225

sqrt225=15

15*8=120

a MiniBicycle wheel has a Radius of 10inches. What is the circumference ?

Answers

Answer:

62.8

3,14x2x10=62.8in squared

Help I need help I don’t know how to do this

Answers

8x²-18xy-5y²

8x²+2xy-20xy-5y²

2x(4x+y) -5y (4x+y)


= (2x-5y) (4x+y)

Given line 1, with coordinates (-7,-3) and (4,7), and line
2 with coordinates (7,-7) and (-3, 4), find the slope of line 2

Answers

Answer:

-11/10 (fraction) or -1.1 (decimal)

Step-by-step explanation:

The slope formula is m=(y2-y1)/(x2-x1)

x1 = 7

x2 = -3

y1 = -7

y2 = 4

So, it’s: (4 - (-7))/(-3-7)

= (4+7)/(-3-7)

= (11)/(-10)

= -11/10 or -1.1

I hope this helps!

The water of a tank is initially 24 feet, and it is being
drained at a rate of 3 feet per day. The equation below
expresses the water level, y, in feet, in terms of the number
of days, x, since the tank began draining.
y = 24 - 3x
A scientist might be interested in the x-intercept of this
equation because it represents the moment when the tank
will be empty. Which of the following is the x-intercept of
the equation above?

Answers

Answer:

oof

Step-by-step explanation:

Nicole sold t-shirts at a festival and made a profit of $83. She made $5 for each t-shirt she sold. Her total expenses were $22. How many t-shirts did she sell?

Answers

Answer:

21

Step-by-step explanation:

83+22=105

105/5=21

Find the surface area of the solid below.

Answers

49. im pretty sureee !!
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