HELP ASAP! Use the information to answer the following question.
Carolyn was asked to solve the following system of equations. Her work is shown.

What error did Carolyn make?

A. Carolyn did not substitute x + 2 for y.

B. Carolyn did not substitute 3 for x to find the value of y for the solution.

C. Carolyn did not subtract 4 from both sides of the equation.

D. Carolyn did not distribute the -2 to both terms.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

536

step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4