Question

Which graph represents the function?
f(x)=x(x+2)

Answer 1

The bottom graph on the right, check the image below:

Step-by-step explanation:

Substitute the x value with 1,

f(1)=1(1+2)=3

f(2)=2(2+2)=8

f(-1)=-1(-1+2)=-1

f(-2)=-2(-2+2)=0