Wally purchased the desk that was on sale for 2/3 of the original price. if the original priceless for $450, what is the price at wally paid? my teacher gave me the answer is 300. clearly tell me how you got the answer.

Okay what you could do is type 400 divided by 2/3 into a calculator, but on paper you would do 400 divided by 3, which is 150, then multiply 150 by 2 since it’s “2/3’s” of 400.
400 / 3 = 150,
150 x 2 = 300, so 300 is correct.

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.