Question

Let f(x) = x2 + 4x + 1What is the Output when the input is 0.5?A 4B. 1.25C. 3.25D. NONE OF THE ABOVE

Answer 1

C. 3.25

Step-by-step explanation

We are given the function:

`f(x)=x^2\text{ + 4x + 1}`

The output of the function is f(x) and the input is x.

So, we want to find f(x) when x is 0.5.

That is:

`\begin{gathered} f(0.5)=0.5^2\text{ + (4 }\cdot\text{ 0.5) + 1} \\ f(0.5)\text{ = 0.25 + 2 + 1} \\ f(0.5)\text{ = 3.25} \end{gathered}`

That is the ouput.