PLEASE HELP ME Select EACH STATEMENT about the function graphed here. (Remember - the B-value tells you how many cycles the function completes from [0, 2pi])

The statements are:

The function is a sine function

The function is a cosine function

The function has not been reflected in the x-axis

The function has been reflected in the x-axis

The functions period is 2 units

The functions period is 1 unit

The functions period is 0.75 units

The functions B-value is 2

The functions B-value is 2pi

The functions B-value is pi

The function has not been shifted up or down

The function has been shifted down one unit

The functions C-value (vertical shift) is -2

The functions midline is y=-1

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x