y - y1 = m (x + x1)
Solve for m bgg subtracting the y's and dividing them by the difference of the 2 x's.
-31 - 35 = -66
-6 - 5 = -11
Divide the two to get 6.
Use the first point (as instructed) and plug it into the equation.
y - 35 = 6 (x - 5)
y + [-35] = [6] (x + [-5])
The brackets are the fill in the blanks.