john smith has $9000 to invest in three types of stock: low risk, medium- risk, and high-risk. he invests according to three principles. the amount invested in low-risk stocks will be at most $1000 more than the amount invested in medium-risk stocks.

Idon’t know what the answer is i wish i could

This is a robot. try again lol. maybe you attached the wrong image.

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.