3 years ago

A function f(x) s defined as f(x)=-8x^2. What is f(-3)?

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

8 0

You substitute the x in the equation -8x^2 so it would be -8(-3)^2 so the answer would be -72

Semenov [28]3 years ago

5 0

$f(-3)=-8\cdot(-3)^2\\
f(-3)=-8\cdot9\\
f(-3)=-72
$

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