Which of the following equations can be solved by the points of intersection P and Q of the curve and the line PQ?
-
A.
x2 – 2 = 0 -
B.
x2 – 4 = 0 -
C.
x2 + 6 = 0 -
D.
X2 – X – 2 = 0 -
E.
x2 – x + 4 = 0
Correct Answer: Option B
Explanation
The points of intersection of the curve and the line are at x = -2 and x = 2.
(therefore) (x + 2) = 0; (x – 2) = 0.
(x + 2)(x – 2) = 0
(x^2 – 4 = 0)