Question

Given a point on a line and the slope of that line, write an equation in slope-intercept form:

POINT:(-8, 20) SLOPE: m=-2*

Answer 1

y = -2x +4

Explanation:

It usually works well to start with the point-slope form of the equation for a line:

y = m(x -h) +k . . . . . . . a line with slope m through point (h, k)

Filling in your values, we have ...

y = -2(x -(-8)) +20

y = -2x -16 +20 . . . . . . eliminate parentheses

y = -2x +4 . . . . . . . . . . simplify