SAT Math Multiple Choice Practice Question 121: Answer and Explanation

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Question: 121

11. If a Δ b = b2 - 3a, then -4 Δ -2 =

A. -22
B. -16
C. -8
D. 16
E. 22

Correct Answer: D

Explanation:

D. This one isn't too tough if you're careful with the negative signs: (-2)2 - 3(-4) = 4 + 12 = 16.

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