Question

Please Help Me!
Water coming out from a fountain is modeled by the function f(x) = -x2 + 7x + 5 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds.
What does the average rate of change of f(x) from x = 4 to x = 6 represent?

a. The water falls down with an average speed of 5 feet per second from 4 seconds to 6 seconds.
b. The water falls down with an average speed of 3 feet per second from 4 seconds to 6 seconds.
c. The water travels an average distance of 5 feet from 4 seconds to 6 seconds.
d. The water travels an average distance of 3 feet from 4 seconds to 6 seconds.

Answer 1

@pooja195 Please help me!

Answer 2

C I THINK

Answer 3

Ok thank you so much @tygrr321

Answer 4

NP