3 years ago

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

Mathematics

2 answers:

Sveta_85 [38]3 years ago

8 0

F(x)= -8x²

f(-3)= -8* (-3)²

f(-3)= -8 * 9

f(-3)= -72

nadya68 [22]3 years ago

4 0

f(x) = -8x²

To find the value of f(-3), put -3 in place of 'x' in the definition of the function.

f(-3) = -8(-3)²

f(-3) = -8(9) = -72

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