Step 1: Let's draw the point (8, - 8)
Step 2: Let's find the equation for this point:
y - y 1 = m (x - x1), where m = -2, x1= 8 and y1 = -8
y - (-8) = -2 (x - 8)
y + 8 = -2x + 16
y + 8 - 8 = -2x + 16 - 8
y = -2x + 8
Step 3: The equation is
y = -2x + 8