Hank has the choice of taking out a 30-year loan for $165,000 at 9.1%
interest, compounded monthly, or the same loan at 20 years for a higher
monthly payment. how much more is the monthly payment for the 20-year
loan than the monthly payment for the 30-year loan?
o
o
o
a. $155.66
b. $90.05
c. $99.19
o
d. $56.47

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.