Question

find the x and y intercepts and graph the equation plotting the intercepts -4x+5y=-20

Answer 1

x intercept at (5,0) and y intercept at (0,-4).

Answer 2

Rearrange the equation to make y the subject...

5y = 4x - 20
y = (4/5)x - 4

When x = 0, what does y equal? y = (4/5)(0) - 4 = -4... (0,-4)

Rearrange the equation to make x the subject...

4x = 5y + 20
x = (5/4)y + 5

when y = 0, what does x equal? x = (5/4)(0) + 5 = 5... (5, 0)

Answer 3

let x=0 solve y, and then let y=0 solve x