Question

Which is the graph of the linear equation 3x - 4y = -12

Answer 1

D

Explanation:

Goes through the points -4 and 3

Answer 2

the graph that goes through the points

(0,3), (-4,0)

Explanation:

make y the subject

3x-4y=-12

4y=3x+12

y=(3x+12)/4

now when x=0

y=12/4=3

so coordinates (0,3)

now when y=0

0=(3x+12)/4

by multplying both sides by 4

0=3x+12

0=3 (x+4)

divide both sides by 3

0=x+4

x=-4

so coordinates (-4,0)