Calculate the gradient (slope) of the joining points (-1, 1) and (2, -2)
-
A.
-1 -
B.
(frac{-1}{2}) -
C.
(frac{1}{2}) -
D.
1
Correct Answer: Option A
Explanation
Gradient = m = (frac{y_2 – y_1}{x_2 – x_1})
= (frac{-2 -1}{2 + 1})
= (frac{-3}{3})
= -1
Calculate the gradient (slope) of the joining points (-1, 1) and (2, -2)
Gradient = m = (frac{y_2 – y_1}{x_2 – x_1})
= (frac{-2 -1}{2 + 1})
= (frac{-3}{3})
= -1