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Use the following function rule to find 
f(3).

{:[f(x)=7-(75 )/(x)],[f(3)=◻]:}

Use the following function rule to find f(3) f(3) .\newlinef(x)=775xf(3)= \begin{array}{l} f(x)=7-\frac{75}{x} \\ f(3)=\square \end{array}

Full solution

Q. Use the following function rule to find f(3) f(3) .\newlinef(x)=775xf(3)= \begin{array}{l} f(x)=7-\frac{75}{x} \\ f(3)=\square \end{array}
  1. Identify Function and Value: Identify the function and the value to substitute.\newlineWe are given the function f(x)=775xf(x) = 7 - \frac{75}{x} and we need to find f(3)f(3). This means we will substitute xx with 33 in the function.
  2. Substitute xx with 33: Substitute xx with 33 in the function.f(3)=7(753)f(3) = 7 - \left(\frac{75}{3}\right)Now we will perform the division within the parentheses.
  3. Perform Division: Perform the division.\newline7575 divided by 33 is 2525.\newlinef(3)=725f(3) = 7 - 25\newlineNow we will subtract 2525 from 77.
  4. Subtract 2525 from 77: Subtract 2525 from 77. \newlinef(3)=725f(3) = 7 - 25\newlinef(3)=18f(3) = -18\newlineWe have found the value of f(3)f(3).

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