If y = –4x – 7, the x-intercept is found by setting y=0 and solving for x:
0 = –4x – 7 => 4x = -7, or x = -7/4 The x-intercept is (-7/4, 0).
The y-intercept is found by setting x = 0 and reading off the value of y:
y = –4x – 7 => y = 0 - 7, or y = -7. The y-intercept is (0, -7).