a. Similar to the last one, we have
Avg rate of change = [Ending height - Beginning height ] / [ Ending time - Beginning time ]
First 2.5 seconds
[25 - 0 ] / [ 2.5 - 0] = 25 / 2.5 = 10 ft/sec
2.5 to 5
[ 0 - 25 ] / [ 5 - 2.5 ] = -25 / 2.5 = -10 ft/sec
0 to 1
[ 15 - 0 ] / [ 1 - 0 ] = 15 ft/sec
1 to 2
[ 24 - 15 ] / [ 2 - 1 ] = 9/1 = 9 ft/sec
b. Definitely not.....the graph is a parabola.....the rates of change on a parabola are not constant
c. Avg rate of change over entire 5 seconds
[ 0 - 0 ] [ 5 - 0 ] = 0/ 5 = 0 ft/sec
Thank you! I honestly only wanted the formula, but thanks haha
I wanted to make sure I was doing it correctly ^-^