3 years ago

If f(x) = 2x2 - 9, find f(5).

Mathematics

2 answers:

MArishka [77]3 years ago

8 0

F(5) = -25, because you have to solve 2x2 - 9 to get -5, then multiply that by 5 to get f(5) = -25

Darina [25.2K]3 years ago

5 0

f(5) =2x2-9 because 2x2=4 and 9-4=5

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