4 years ago

If f(x) = 5 + 4x^2, then f(3) = . Give only the final answer

Mathematics

2 answers:

Bingel [31]4 years ago

6 0

$\text{Solve by plugging in 3 to x:}\\\\f(x)=5+4(3)^2\\\\f(x)=5+4(9)\\\\f(x)=5+36\\\\f(x)=41\\\\\boxed{f(3)=41}$

Feliz [49]4 years ago

4 0

Answer:

hope this helps

Step-by-step explanation:

f(x) = 5 + 4x^2, then f(3)

5 + 4(3)^2

5+4(9)

5+36

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