Question 18 Answer and Explanation _ACT December 2017 Form A10 Math Section

Question 18 Answer and Explanation _ACT December 2017 Form A10 Math Section

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18. A function $f\left({x}\right)$ is defined as $f\left({x}\right)=-6{x}^{2}$ . What is $f\left({-3}\right)$ ?

F. -324

G. -54

H. 54

J. 108

K. 324

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

-6×(-3)²=-54, choose G.