q − 87
7 − q4
8 − q2
7 + q8
Correct answer is B
Y = Px2 + q
Y = 2x2 - 1
Px2 + q = 2x2 - 1
Px2 = 2x2 - 1 - q
p = 2x2−1−qx2
at x = 2
P = 2(2)2−1−q22
= 2(4)−1−q4
= 8−1−q4
P = 7−q4
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