Question

How do you graph `y=5-cosx`?

Answer 1

graph{5-cosx [-10, 10, 3, 7.5]}

Explanation:

First think about the graph of `y=cosx`, which is as follows:
graph{cosx [-10, 10, -1.5, 1.5]}

So then the graph of `y=-cosx` will be the above graph inverted:
graph{-cosx [-10, 10, -1.5, 1.5]}

And so `y=5-cosx` will be the above graph moved 5 units up
graph{5-cosx [-10, 10, 3, 7.5]}