JAMB - Mathematics (2002 - No. 29)
Find the coordinates of the mid-point of x and y intercepts of the line 2y = 4x - 8
(2, 0)
(1, -2)
(-1, -2)
(1, 2)
설명
2y = 4x - 8 \(\implies\) y = 2x - 4.
When x = 0, y = -4.
When y = 0, x = 2.
The midpoint between (0, -4) and (2, 0) = \((\frac{0 + 2}{2}, \frac{-4 + 0}{2})\)
= \((1, -2)\)