Question

Choose the correct slope of the line that passes through the points (1, −3) and (3, −5).

−1
1
0
1/2

Answer 1

slope = (y2 - y1) / (x2 - x1)
(1,-3)....x1 = 1 and y1 = -3
(3,-5)...x2 = 3 and y2 = -5
now we sub and solve
slope = (-5 - (-3) / (3 - 1) = (-5 + 3) / 2 = -2/2 = -1 <==