Use the following function rule to find f(4). f(x) = 12 − 2sqrt x f(4) = _____

Identify Function and Input: Identify the function and the input value. We are given the function f(x) = 12 - 2sqrt(x) and we need to find the value of f(4).Substitute Input into Function: Substitute the input value into the function. To find f(4), we substitute x with 4 in the function f(x). f(4) = 12 - 2sqrt(4)Calculate Square Root: Calculate the square root of the input value. The square root of 4 is 2. sqrt(4) = 2Continue Calculation: Continue the calculation with the square root result. Now we substitute the square root value back into the function. f(4) = 12 - 2 * 2Perform Multiplication and Subtraction: Perform the multiplication and subtraction to find the final result. f(4) = 12 - 4 f(4) = 8

Resources

Testimonials

Plans

Resources

Testimonials

Plans

AI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Use the following function rule to find $f(4)$ . $\newline$ $f(x) = 12 - 2\sqrt{x}$ $\newline$ $f(4) =$ _____

View step-by-step help

Full solution

Q. Use the following function rule to find

f(4)

\newline

f(x) = 12 - 2\sqrt{x}

\newline

f(4) =

_____

Identify Function and Input: Identify the function and the input value. $\newline$ We are given the function $f(x) = 12 - 2\sqrt{x}$ and we need to find the value of $f(4)$ .
Substitute Input into Function: Substitute the input value into the function. $\newline$ To find $f(4)$ , we substitute $x$ with $4$ in the function $f(x)$ . $\newline$ $f(4) = 12 - 2\sqrt{4}$
Calculate Square Root: Calculate the square root of the input value. $\newline$ The square root of $4$ is $2$ . $\newline$ $\sqrt{4} = 2$
Continue Calculation: Continue the calculation with the square root result. $\newline$ Now we substitute the square root value back into the function. $\newline$ $f(4) = 12 - 2 \times 2$
Perform Multiplication and Subtraction: Perform the multiplication and subtraction to find the final result. $\newline$ $f(4) = 12 - 4$ $\newline$ $f(4) = 8$