The graph of the function y = x(^2) + 4 and a straight line PQ are drawn to solve the equation x(^2) – 3x + 2 = 0. What is the equation of PQ?
-
A.
y = 3x – 2 -
B.
y = 3x + 2 -
C.
y = 3x – 4 -
D.
y = 3x + 4
Correct Answer: Option B
Explanation
x(^2) + 4 = x(^2) – 3x + 2
3x + 2 = y