Question

Let f(x) = x2 + 4x + 1

What is the Output when the Input is 0.5?
A 4
B. 1.25
C. 3.25
D. NONE OF THE ABOVE

Answer 1

4

Explanation:

2(.5)=1

4(.5)=2

2+1+1=4

4

Answer 2

4

Explanation:

plug in 0.5

0.5(2)+4(0.5)+1

4