Question

Find f(-5) for this piecewise-defined function.

3x + 11
if x ≤ 4
5X+6
if 4 < x < 8
-4x + 3
if x ≥ 8
Write your answer as an integer or as a fraction in simplest form.
f(-5) =
f(x) =
Submit
Work it out

Answer 1

The value of f(-5) for the given piecewise-defined function is -4.

Step-by-step explanation:

To find f(-5), we need to determine which part of the piecewise-defined function to use for x = -5. Since -5 is less than 4, we use the first part of the function, which is 3x + 11. Plugging in -5 for x, we get f(-5) = 3(-5) + 11 = -4.

So, f(-5) = -4.

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