Anna wants to buy a house at $67,000. She will need at down payment of 15%. What is the down payment amount
2 answers:
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Answer:
.
Step-by-step explanation:
An exponential function is typically in the form , where
and
(
) are constants to be found.
In this question:
means that
.
means that
.
Divide one of the two equations by the other to eliminate and solve for
.
The number of the right-hand side of the second equation is larger than that of the first equation. Hence, divide the second equation with the first:
.
.
.
.
Substitute back into either equation (for example, the first equation) and solve for
:
.
.
Substitute and
into the other equation. That equation should also be satisfied.
Therefore, this function would be:
.