Which is the correct equation for the graph?

y = cos x + 2

Step-by-step explanation:

The graph of y = cos x begins at y=1 when x=0, that is, at (0, 1).  If we translate the entire graph of y = cos x upward by 2 units, we get the graph shown.  The correct answer is b:  y = cos x + 2.

where is the diagram? shown below where? ?

step-by-step explanation:

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