JAMB - Mathematics (2017 - No. 39)
Find the gradient of the line joining the points (3, 2) and (1, 4)
3/2
2/1
-1
3/2
Forklaring
Gradient of line joining points (3, 2), (1, 4)
Gradient = \(\frac{\text{Change in Y}}{\text{Change in X}}\)
= \(\frac{y_2 - Y_1}{x_2 - x_1}\)\)
(X1, Y1) = (3, 2)
(X2, Y2) = (1, 4)
Gradient = \(\frac{4 − 2}{1 + 3}\)
= \(\frac{2}{-2}\)
= −1
Gradient = \(\frac{\text{Change in Y}}{\text{Change in X}}\)
= \(\frac{y_2 - Y_1}{x_2 - x_1}\)\)
(X1, Y1) = (3, 2)
(X2, Y2) = (1, 4)
Gradient = \(\frac{4 − 2}{1 + 3}\)
= \(\frac{2}{-2}\)
= −1