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.

25

Step-by-step explanation:

First, lets create a equation for our situation. Let x be the months. We know four our problem that Eliza started her savings account with $100, and each month she deposits $25 into her account. We can use that information to create a model as follows:

25x+100

We want to find the average value of that function from the 2nd month to the 10th month, so its average value in the interval [2,10].

We can conclude that the average rate of change in Eliza's account from the 2nd month to the 10th month is $25.

The work is below in a png.

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step-by-step explanation:

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