MATH SOLVE

4 months ago

Q:
# Eliza started her savings account with $100. Each month she deposits $25 into her account. Determine the average rate of change in Eliza's account from the 2nd month to the 10th month. Show all work for full credit.

Accepted Solution

A:

"Each month she deposits $25 into her account" tells me that the average rate of change from the 2nd to the 10th month is simply $25/month. Of course you can calculate this using the "average rate of change formula"

f(b) - f(a)

ave r of c = ---------------------

b - a

Here f(x) = $100 + ($25)x, a = 2 and b = 10

f(b) - f(a)

ave r of c = ---------------------

b - a

Here f(x) = $100 + ($25)x, a = 2 and b = 10