Evaluate Using the Given Value f(8)=0.25(8)^2-1.5*8+2.5

$f (8) = 0.25 {(8)}^{2} - 1.5 \cdot 8 + 2.5$

Step 1

Simplify each term.

Raise $8$ to the power of $2$ .

$f (8) = 0.25 \cdot 64 - 1.5 \cdot 8 + 2.5$

Multiply $0.25$ by $64$ .

$f (8) = 16 - 1.5 \cdot 8 + 2.5$

Multiply $- 1.5$ by $8$ .

$f (8) = 16 - 12 + 2.5$

Step 2

Simplify by adding and subtracting.

Subtract $12$ from $16$ .

$f (8) = 4 + 2.5$

Add $4$ and $2.5$ .

$f (8) = 6.5$