Question

Number 18.

What is the value of f(3) if ? f(x)= -5/2x + 4

A. 0.4

B. –3.5

C. 11.5

D. –11.5

E. 3.5

Answer 1

f(x) = -5/2x + 4

f(3) = (-5/2)(3) + 4

f(3) = -15/2 + 4

f(3) = -7.5 + 4

f(3) = -3.5

Answer: B. –3.5