Question

Immediate help ASAP whats the value of f(8)

Answer 1

Answer:

$\large \boxed{f(8) = 27}$

Step-by-step explanation:

Goal

• Find f(8)

Given

• Equation

$f(x) = \frac{1}{2} {x}^{2} - ( \frac{1}{4} x + 3)$

Step 1

• Substitute x = 8 in the equation and replace f(x) with f(8).

$f(8) = \frac{1}{2} {(8)}^{2} - ( \frac{1}{4} (8) + 3)$

Step 2

• Evaluate the value of f(8).

$f(8) = \frac{1}{2} (64) - ( \frac{8}{4} + 3) \\ f(8) = 32 - ( \frac{2}{1} + 3) \\ f(8) = 32 - (2 + 3) \\ f(8) = 32 - (5) \longrightarrow 32 - 5 \\ f(8) = 27$

Hence, the value of f(8) is 27.