Question

If f(x) = 2x2 + 1, what is f(x) when x = 3?

1
7
13
19

Answer 1

The answer is 19. When you put 3 as the c it would be 2(3) to the 2nd power which is 18 plus 1 which is 19.

Answer 2

Based on the calculations, the value of f(x) when x is equal to 3 is: D. 19.

What is a function?

A function is a mathematical expression which can be used to define and represent the relationship that exist between two or more variable.

Given the following function:

f(x) = 2x² + 1

In order to determine the value of f(x) when x is equal to 3, we would substitute the value of x into the given function as follows:

f(3) = 2(3)² + 1

f(3) = 2(9) + 1

f(3) = 18 + 1

f(3) = 19.

Read more on function here: brainly.com/question/4246058

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