Answer:

Step-by-step explanation:
Hello, please consider the following.

Hope this helps.
Do not hesitate if you need further explanation.
Thank you
The answer to your questions is 80%
Domain: (-∞,∞)
Range: (3,∞)
x-intercepts: none
y-intercepts: (0,7)
Interval positive: (3,∞)
Interval negative: none
Interval increasing: (7,∞)
Interval decreasing: (-∞,7)
I'm not sure what the average rate of change over is though.