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Let’s check out your problem:

{:[f(x)=14-0.5 x],[f(30)=]:}

f(x)=14−0.5xf(30)=□ \begin{array}{l}f(x)=14-0.5 x \\ f(30)=\square\end{array}

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Full solution

Q. f(x)=14−0.5xf(30)=□ \begin{array}{l}f(x)=14-0.5 x \\ f(30)=\square\end{array}
  1. Substitute xx with 3030: To find the value of f(30)f(30), we need to substitute xx with 3030 in the function f(x)=14−0.5xf(x) = 14 - 0.5x.
  2. Multiply 0.50.5 by 3030: Now, let's substitute xx with 3030: f(30)=14−0.5×30f(30) = 14 - 0.5 \times 30.
  3. Subtract the result from 1414: Next, we multiply 00.55 by 3030: 00.55 \times 3030 = 1515.
  4. Calculate the final result: Then, we subtract the result from 1414: 14−1514 - 15.
  5. Calculate the final result: Then, we subtract the result from 1414: 14−1514 - 15. The calculation gives us: 14−15=−114 - 15 = -1.
  6. Calculate the final result: Then, we subtract the result from 1414: 14−1514 - 15. The calculation gives us: 14−15=−114 - 15 = -1. Therefore, the value of f(30)f(30) is −1-1.

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