Look at the screen shot teach me how to do this thank you.

Slope intercept form (y = mx + b) =

X intercept (slope):

Y Intercept:

Step-by-step explanation:

To find the x-intercept, substitute in  0  for  y and solve for  x.

To find the y-intercept, substitute in  0  for  x and solve for  y.

Hope this helps! :D

Step-by-step explanation:

solve for y

isolate the y variable to one side

let's first add 7 to both sides of the equation

sevens on the left side of the equation cancel so we get

Now let's divide everything in the equation by 3 to further isolate the y variable

The threes on the left hand side of the equation cancel

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