How do you graph $y=-2+cosx$ ?

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Answer 1 · 2017-09-22T07:11:15

By providing numbers to x, you can find value of the function and graph it.

If x is 0, your function will be $y=-2+1 = -1$

If x is $pi/4$ your function will be $y=-2+0.707= -1.293$

etc. Now you can graph

graph{-2+(cosx) [-10.08, 9.92, -7.24, 2.76]}

How do you graph y=-2+cosx y=-2+cosx?