Find f(15) using the formula f(x) = x - 11.
Understand the Problem
The question is asking to find the value of the function f(15) using the provided formula f(x) = x - 11. We need to substitute 15 into the formula to calculate the output.
Answer
The value of \(f(15)\) is \(4\).
Answer for screen readers
The value of (f(15)) is (4).
Steps to Solve
- Substitute the Value into the Function Substituting (x = 15) into the function (f(x) = x - 11).
$$ f(15) = 15 - 11 $$
- Perform the Calculation Now, calculate the expression.
$$ f(15) = 15 - 11 = 4 $$
The value of (f(15)) is (4).
More Information
This function, (f(x) = x - 11), represents a linear function. The output decreases by 11 for each increase of 1 in the input.
Tips
- A common mistake is to confuse the subtraction with addition. Ensure you are correctly subtracting 11 from the input value.
- Another mistake is misreading the function formula. Double-check that it matches (f(x) = x - 11).
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