How do you find the x and y intercepts for y=7x+8?

1 Answer
Apr 26, 2018

x-intercept: x=-8/7
y-intercept: y=8

Explanation:

A graph intercepts the y-axis when x=0 and the x-axis when y=0. So, we must plug in zero for both variables, respectively, and solve.

y-intercept (x=0)

y=7(0)+8

color(blue)(y=8)

x-intercept (y=0)

0=7x+8

7x=-8

color(lime)(x=-8/7)

Our intercepts are in blue and lime green. Hope this helps!