Write an equation in point-slope form, y – y1 = m(x – x1), of the line through points (9, –2) and (10, 2). use (9, –2) as the point (x1, y1).

The equation written in point-slope form would be:

 y+2=1/4(x-9).                                                

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1