The function 
is an exponential with base greater than 1. So, its range is 
, with 0 being the horizontal asymptote as 
.
If you multiply the function by 
, the range remains the same.
If you reflect it over the x-axis, you're changing the sign of the function. So, the new range is
0, 1/3, 2/3, 1, 1 1/3, 1 2/3, 2
4 40
5 50
6 60
7 70
8 80
9 90
10 100
11 110
12 120
13 130
14 140
15 150
16 160
17 170
18 180
3.5, y2-y1 / x2-x1 or rise/run
