Question

Immediate help ASAP whats the value of f(8)

Answer 1

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

Explanation:

Goal

• Find f(8)

Given

• Equation

`f(x) = (1)/(2) {x}^(2) - ( (1)/(4) x + 3)`

Step 1

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

`f(8) = (1)/(2) {(8)}^(2) - ( (1)/(4) (8) + 3)`

Step 2

• Evaluate the value of f(8).

`f(8) = (1)/(2) (64) - ( (8)/(4) + 3) \\ f(8) = 32 - ( (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.