The values of the given functions are
f(5) = 14
f(-8) = 20
f(4) = -59
Evaluating a function
From the question, we are to calculate the given functions
From the given information,
The function
f(x) = 3x - 1 for x > 4
∴ f(5) becomes
f(5) = 3(5) - 1
f(5) = 15 -1
f(5) = 14
For f(-8)
f(x) = -3x - 4 for x < -5
∴ f(-8) becomes
f(-8) = -3(-8) -4
f(-8) = 24 - 4
f(-8) = 20
For f(4)
f(x) = -2x² -6x - 3 for -5 ≤ x ≤ 4
∴ f(4) becomes
f(4) = -2(4)² -6(4) -3
f(4) = -2(16) -24 -3
f(4) = -32 -24 -3
f(4) = -59
Hence, the values of the given functions are
f(5) = 14
f(-8) = 20
f(4) = -59
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