Question

If f(x) = 2х2 + 1, what is f(x) when x = 3? o 1 ООО

Answer 1

f(x) equals 19 when  x = 3

Explanation:

Here we have the following function:

$f(x)=2x^2+1$

And want to know the output of the function when the input is $x=3$. So let's substitute this x-values into the function:

$f(3)=2(3)^2+1 \\ \\ f(3)=2(9)+1 \\ \\ \boxed{f(3)=19}$

Finally:

f(x) equals 19 when  x = 3

Learn more:

Zeroes of a parabola: brainly.com/question/1469367

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