Question

Choose the function whose graph is given by (graph inside!)
A. y = sec(1/2x) + 3

B. y = 1/3sec(2x)

C. y = 3sec(1/2x)

D. y = 3csc(1/2x)

***again, very confused :(

Answer 1

graph!

Answer 2

The branches of the secant occur on the high points and low points of the cosine. So evaluate the underlying cosine graph.

Answer 3

the ones below the x-axis?