Question

Let the function f(x) have the form f(x)= Acos(x+C). To produce a graph that matches the one shown below, what must the value of C be?
a) 1
b) 2
c) 4
d) 3

Answer 1

2

Answer 2

cos(x-a)
a is a term that shifts the function
here it is -2

Answer 3

thank you