Let f(x)=√x-4
What is the average rate of change of f(x) from 8 to 14?
Round to the nearest hundredth.
-5.16
0.19
-0.19
5.16
Avg rate of change =
[ f(14 ) - f(8) ] / [ 14 - 8 ] =
[ ( √ [14 - 4] ) - (√ [8 - 4]) ] / 6 =
[ √10 - √4 ] / 6 =
+593 
