First you would do subtract because you work left to right giving you 1=2+. Then you would add giving you 1 = 9. giving you 9 over 1 so the answer is 9. I think
The slope of the line would be 1/4 because you are going up by 1 and going right 4.
The answer to your question is x = 8
Ascending order-
1. -3/4
2. -7/3
3. 0.5
4. 1.2
5. 2/3
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.