Question

Graph 3x + 4y = 12.
y

Answer 1

see below

Explanation:

To find the x- and y-intercepts, set each of the variables to zero and solve for the other:

y-intercept: 0 +4y = 12 ⇒ y = 12/4 = 3

x-intercept: 3x +0 = 12 ⇒ x = 12/3 = 4

Plot these points (0, 3) and (4, 0), and draw a straight line through them.