Asavings account compounds interest, at a rate of 15%, once a year. elizabeth puts $800 in the account as the principal. how can elizabeth set up a function to track the amount of money she has?
a(x) = 800(15)^x where 15 is the interest rate

a(x) = 800(1 + .15)^x where .15 is the interest rate

a(x) = 800(.15)^x where .15 is the interest rate

a(x) = 800(1 + 15)^x where 15 is the interest rate

where 0.15 is the interest rate .

Step-by-step explanation:

Given: A savings account compounds interest, at a rate of 15%, once a year. Elizabeth puts $800 in the account as the principal.

Principal amount =$800

r=15% = 0.15

We know that the compound amount after x years will be given by the exponential function as:-

, where r is the rate of interest in decimal.

Therefore, function according to the given information will be

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.

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step-by-step explanation: