SAT Nonlinear functions Practice Question 6 (Easy)

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Math · Advanced MathEasy

The function $h$ is defined by $h(x) = 3x^2 - 7$ . What is the value of $h(-2)$ ?

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Answer: 5

Substitute $-2$ for $x$ : $(-2)^2 = 4$ , so $h(-2) = 3(4) - 7 = 12 - 7 = 5$ .

Treating $(-2)^2$ as $-4$ gives $3(-4) - 7 = -19$ .

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