Question

Which of the following statements are true about the graph of f (x) = 1/4 coz ( x + π/3) - 1? Select two of the following that apply.

Answer 1

Explanation:

Options a and d are right.

The given function is of the above form

`y=acosb(x-p)+k`

We have here a=1/4 :b=1 : p = -pi/3: and k=-1

Hence we have an amplitude of 1/4, horizontal shift of pi/3 to the right,vertical shift of 1 unit down and vertical shrink of 1/4

Hence the correct choices would be

1) It has amplitude 1/4

d) Horizontal shift of pi/3 to the left

Other options are false