The graph of the function y x2 4 and a straight... - JAMB Mathematics 2003 Question
The graph of the function y = x2 + 4 and a straight line PQ are drawn to solve the equation x2 - 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
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Correct Option: B
x2 + 4 = x2 - 3x + 2
3x + 2 = y
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