Question

The point slope form of the equation of the line passes through (-9,-2) and (1,3) is y-3=1/2 (x-1)

Answer 1

y - 3 = (1/2)(x - 1)

Explanation:

As we move from the point (-9,-2) to the point (1,3), x increases by 10 and y increases by 5. Thus, the slope of this line is m = rise / run = 5/10, or 1/2.

Using info from the 2nd point (1, 3), the equation of this line in point-slope form is

y - 3 = (1/2)(x - 1)