Question

At what point does the line given by the following equation cross the x-axis?
y = -x + 7

Answer 1

(7, 0)

Explanation:

We are trying to find the location that the equation crosses the x-axis.

This location is also known as the x-intercept.

To find the x-intercept, you can just set y in the equation to 0 and then solve for x.

0 = -x + 7

-x = -7

x = 7

So, the x-intercept is 7.

X-intercepts always have a y of 0 by definition, so it can be found at the point (7, 0)

Answer 2

(7,0)

Explanation:

you can 0 in for Y in order to find the x-axis

0=-x+7

-7=-x

x=7