5/21 is a repeating decimal but the first digits are 0.238095
Price increase is $ 22-20 =$2 so the percent increase is 2/20 x 100= 10%
1. Pick two points on the line and determine their coordinates.
2. Determine the difference in y-coordinates of these two points (rise).
3. Determine the difference in x-coordinates for these two points (run).
4. Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).
