17. The most Lastri can afford to pay per year in mortgage payments is $13,900, and her credit score is 498. According to the following table for a $150,000
mortgage, by how many points would she need to improve this credit score in
order to take a mortgage for $150,000?
W
FICO
Interest Monthly
Score
Rate Payment
720-850
5.59% $860
700-719
5.71%
$872
675-699
6.25% $924
620-674
7.40% $1039
560-619
8.53%
$1157
500-559
9.29% $1238

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The answer to this is check all of themi hope this !

You're asking in the ap section, so i'll give the ap calculus-style answer. alternatively, you can find the vertex of the parabola and use the "y"-coordinate as the answer.

the maximum height can occur at a critical number, that is, a number  such that  .

the derivative of  can be calculated as follows:



find a value of  that is a zero of the derivative:


this is parabola that is opening downward; we can assume there is a maximum at  .

to find that maximum, calculate  .