Make sense of problems. Alfredo's bank charges an $8 service fee each month if his account goes
below $500. In June, Alfredo had $510 in his
account. He withdrew $25 and then did not have
any transactions in his account for 6 months.
a. Write as an integer the amount by which
Alfredo's bank balance changed during the six
months.

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.

The answer should be c.