Answer: Yes it is a function.
This is because any x input leads to exactly one y output.
The graph passes the vertical line test. It is impossible to draw a single vertical line through more than one point on the parabolic curve.
Answer:
the second option
Step-by-step explanation:
3.5
x>=3
5x-6>=9
5x>=9+6
5x>=15
x>=15/5
