Question

I know that x=20 and 5(4) = 20 to get 40, but how do you graph it

Answer 1

What is original equation?

Answer 2

x + 5y = 40. I know what it is but I dont know how to plot it

Answer 3

The easy way is tabulate 2 points x and y intercept:
x = 0, y = 40/5 = 8 --> ( 0, 8)
y = 0, x = 40 ---> ( 40, 0)
Take scale 10 as 1 unit
Connect 2 points to get the line.

Answer 4

From y on i got confused

Answer 5

i see where you got 0,8