Hattie had $1200 to invest and wants to earn 4.6% interest per year. She will put some of the money into an account that earns 3.6% per year and the rest into an account that earns 4.8% per year. How much money should she put into each account?

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step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,