Question

What is the slope of the line through (-9,6) and (-3,9)?

Answer 1

Answer:

slope , y-y1/y2-y1 = x-x1/x2-x1

y - 6/ 9-6 = x + 9/ -3+9

6(y-6) = 3(x+9)

6y - 36 = 3x +27

3x -6y + 63 = 0 divide by 3

slope, x -2y + 21 = 0