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Use the following function rule to find f(18)f(18).\newlinef(x)=918+xf(x) = 9\sqrt{18 + x}\newlinef(18)=f(18) = _____

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Full solution

Q. Use the following function rule to find f(18)f(18).\newlinef(x)=918+xf(x) = 9\sqrt{18 + x}\newlinef(18)=f(18) = _____
  1. Identify Function and Input: Identify the function and the input value.\newlineWe are given the function f(x)=918+xf(x) = 9\sqrt{18 + x} and we need to find f(18)f(18).
  2. Substitute Input Value: Substitute the input value into the function. f(18)=918+18f(18) = 9\sqrt{18 + 18}
  3. Simplify Expression: Simplify the expression inside the square root. f(18)=936f(18) = 9\sqrt{36}
  4. Calculate Square Root: Calculate the square root. f(18)=936=9×6f(18) = 9\sqrt{36} = 9 \times 6
  5. Find Final Answer: Multiply to find the final answer. f(18)=9×6=54f(18) = 9 \times 6 = 54

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