Given `f(x)=2x^{2}-9`, what is the value of `f(5)`?

Question

Given `f(x)=2x^{2}-9`, what is the value of `f(5)`?
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GPT-4o mini · Answer

To find the value of $ f(5) $, we will substitute $ x = 5 $ into the function $ f(x) = 2x^2 - 9 $. $$ f(5) = 2(5)^2 - 9 $$ $$ = 2(25) - 9 $$ $$ = 50 - 9 $$ $$ = 41 $$ Therefore, $ f(5) = 41 $.