Which of the following equations can be solved by the points of intersection P and Q of the curve and the line PQ?
- A.
x^{2} – 2 = 0 - B.
x^{2} – 4 = 0 - C.
x^{2} + 6 = 0 - D.
X^{2} – X – 2 = 0 - E.
x^{2} – 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)