QUESTION 11
A cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 11, the
7T
vertical shift is 9 units down, and the period of the function is The graph of the function does not show
12
a phase shift. What is the equation of the cosine function described?
7T 12 T 7 24
Fill in the blanks using values from this list: -20, -11,-9, -2, 2. 9, 11, 20,
12 7.24' 7
f(x)=
COSC
X)