Start by identifying your x1, x2, y1, and y2 values x1: -2 x2: 9 y1: -20 y2: 79
The general form for writing a point slope equation is y-y1 = m(x-x1) M is your slope. To find the slope, plug the values you just identified into the equation y2-y1/x2-x1 This leaves you with 79+20/9+2 Which equals 9, so your slope (m) equals nine. you can now plug everything into the general form which gives you: y+20 = 9(x+2)
