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# the original value of an investment is $1,800. if the value has increased by 7% each year, write an exponential to model the situation. then, find the value of the investment after 15 years 2 months ago ## Solution 1 Guest #3032 2 months ago For this case we have an equation of the form: y = A (b) ^ t Where, A: initial amount b: growth rate t: time Substituting values we have: y = 1800 * (1.07) ^ t For 15 years we have: y = 1800 * (1.07) ^ 15 y = 4966.256773$
Answer:

An exponential to model of the situation is:

y = 1800 * (1.07) ^ t

the value of the investment after 15 years is:

y = 4966.256773 \$

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