Question

Si f(x) = 1/2x^2-(1/4x+3),¿cuál es el valor de f(8)? (3) 27 (2) 17 (4) 33 (1) 11

Answer 1

Answer:

27

Step-by-step explanation:

To evaluate f(8) substitute x = 8 into f(x)

f(8) = $\frac{1}{2}$ × 8² - ($\frac{1}{4}$ × 8 + 3)

     = $\frac{1}{2}$ × 64 - (2 + 3)

     = 32 - 5

     = 27