How do you graph $y=-cosx-1$ ?

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Answer 1 · 2016-10-27T21:48:42

graph{-cosx -1 [-5, 5, -2.5, 2.5]}

It is important to learn what the graphs of $y=sinx$ and $y=cosx$ look like;

The graph of $y=cosx$ is as follows;
graph{cosx [-5, 5, -2.5, 2.5]}

So, the graph of $y=-cosx$ is the above graph inverted
graph{-cosx [-5, 5, -2.5, 2.5]}

And, the graph of $y=-cosx-1$ is the above graph translated 1 unit down
graph{-cosx -1 [-5, 5, -2.5, 2.5]}

How do you graph y=-cosx-1y=-cosx-1?