Use the following function rule to find f(81). f(x) = 9sqrt x f(81) = _____

Identify Function and Input: Identify the function and the input value. The function given is f(x) = 9√x, and we need to find the value of f(81).Substitute Input into Function: Substitute the input value into the function. To find f(81), we substitute x with 81 in the function: f(81) = 9√81.Calculate Square Root: Calculate the square root of 81. The square root of 81 is 9, since 9 * 9 = 81.Multiply by 9: Multiply the result by 9. Now we multiply the square root of 81 by 9: f(81) = 9 * 9.Complete Calculation: Complete the calculation. f(81) = 9 * 9 = 81.

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Use the following function rule to find $f(81)$ . $\newline$ $f(x) = 9\sqrt{x}$ $\newline$ $f(81) =$ _____

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Q. Use the following function rule to find

f(81)

\newline

f(x) = 9\sqrt{x}

\newline

f(81) =

_____

Identify Function and Input: Identify the function and the input value. $\newline$ The function given is $f(x) = 9\sqrt{x}$ , and we need to find the value of $f(81)$ .
Substitute Input into Function: Substitute the input value into the function. $\newline$ To find $f(81)$ , we substitute $x$ with $81$ in the function: $f(81) = 9\sqrt{81}$ .
Calculate Square Root: Calculate the square root of $81$ . The square root of $81$ is $9$ , since $9 \times 9 = 81$ .
Multiply by $9$ : Multiply the result by $9$ . Now we multiply the square root of $81$ by $9$ : $f(81) = 9 \times 9$ .
Complete Calculation: Complete the calculation. $f(81) = 9 \times 9 = 81$ .