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3 years ago

If f(x) = −4x 2 + 15, then f(−3)

Mathematics

2 answers:

xxTIMURxx [149]3 years ago

8 0

Answer:

-21

Step-by-step explanation:

f(-3) = -4(-3)² + 15 = -4(9) + 15 = -36 + 15 = -21

MArishka [77]3 years ago

3 0

Answer:

f(-3) = -21

Step-by-step explanation:

f(x) = −4x²+ 15

f(-3) = -4(-3)² + 15

f(-3) = -4(9) + 15

f(-3) = -36 + 15

f(-3) = -21

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Answer:

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Step-by-step explanation:

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