How do you graph y=cosx+3?

1 Answer
Nov 21, 2017

Start with the base graph and shift up three units.

Explanation:

Start with just the graph of f(x) = cos(x). This should be memorized.

![Desmos.com and MS Paint](useruploads.socratic.org)

A number on the end of this function is always a vertical shift. Positive numbers will be a vertical shift up and a negative number would be a vertical shift down. Shifting up three units gives the following graph.

![Desmos.com and MS Paint](useruploads.socratic.org)