Question

Find an equation for the linear function which has y-intercept -8 and -intercept 7.

Answer 1

8x -7y = 56

Explanation:

You want an equation for a line that has x-intercept 7 and y-intercept -8.

Intercept form

The intercept form of the equation of a line with x-intercept 'a' and y-intercept 'b' is ...

x/a +y/b = 1

For the given intercepts, this equation becomes ...

x/7 +y/(-8) = 1

Multiplying by 56 puts this equation in standard form.

8x -7y = 56