I was giving a graph of a combined function and four different equations and I need to select 2 of the equations and whether the graph shown is of addition, subtraction, multiplication or division. F(X)= X and H(X) = COS X and the combined graph is F(X)*H(X).
I need to justify my answer using key features of the graph as related to the initial functions
I could easily tell in my head that the graph shown on my paper was of X*cosX, but I'm just not sure how to explain it using the key features (domain, range, x and y ints, etc.). Essentially, I have to explain why I chose those two functions and why I chose multiplication.
- The new function is oscillating, which is why cos X is one of the functions.
- There are no asymptotes
What else can I say? Thanks in advance.