Answer:
For x∈ {-∞,-3} y<0, below x-axis
x∈ {-3,-1} y>0, above x-axis
x∈ {-1,4} y<0, below x-axis
x∈ {4,∞} y>0, above x-axis
Step-by-step explanation:
f(x)=
=0
12
Using formula
distance =
Then input the values:
Distance =
=
= 12
The one is the same everywhere so we ignore it.
Choice B