The graph of the curve (y = 2x^2 – 5x – 1) and a straight line PQ were drawn to solve the equation (2x^2 – 5x + 2 = 0)
What is the equation of the straight line PQ?

A.
y = 1 
B.
y = 1 
C.
y = 3 
D.
y = 3
Correct Answer: Option D
Explanation
Let the straight line PQ = y
2x(^2) – 5x – 1 – y = 2x(^2) – 5x + 2
y = 2x(^2) – 5x – 1 – 2x(^2) + 5x – 2
y = 3