Question

Find the point-slope equation for the line

that passes through the points (5, 19) and
(-5, -1). Use the first point in your
equation.

Answer 1

`m=(y_2-y_1)/(x_2-x_1)\\ =(-1-19)/(-5-5) \\=(-20)/(-10) =2\\y-y_(1) =m(x-x_1)\\\\m=2\\(x_1, y_1)=(5, 19)\\y - 19 = 2(x - 5)\\y = 2x+9`