Answer:
I believe these are all of the correct answers
1. You are correct with the 5
2. 46/3 or 15.33333
3. 84/5 or 16.8
4. 35/9 or 3.8888...
5. 100/9 or 11.11111...
6. 15/4 or 3.75
7. 6/15 or 0.4
8. 1/15 or .066666...
9. 4/21 or 0.190476
10. 15/66 or 0.227273
11. 1/3 or .33333....
12. also 1/3
13. 3 21/32
14. 2 5/36
15. 1 19/40
16. 7/20
17. 4 14/15
18. 15 1/8
Sine is also known as Opposite over hypotenuse.
We can present these coordinates in tabulate form
x y
-1 0.8
0 2
1 5
2 12.5
We work the multiplicative rate of change by finding out the increase ratio
12.5 ÷ 5 = 2.5
5 ÷ 2 = 2.5
2 ÷ 0.8 = 2.5
The ratio results in the same ratio every time, which is 2.5
The multiplicative rate of change = 2.5
