To be a function each different x value would have a different Y value.
First one is a function, there are no repeated Y values.
The second one is a function.
Third one is not a function because it has two identical Y values with different x values.
The fourth one is a function.
Answer:

Step-by-step explanation:
Given


Find h(x)
Substitute -7 for x


Absolute values return positive. So:


Perpendiculars are any lines that intersect to make or forms a right angle.
Answer:
i d k
Step-by-step explanation:
Answer:
Solve for x
Step-by-step explanation:
