How do you write an equation of $y = cos x$ $y=cosx$ with pi/2 units down?

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Answer 1 · 2017-03-13T20:50:01

When given an equation, $y = (A) cos (B x + C) + D$ $y=(A)cos(Bx+C)+D$ , $D$ $D$ is the vertical shift.

The equation you seek is $y = cos (x) - \frac{π}{2}$ $y=cos(x)-pi/2$

How do you write an equation of y=cosxy=cosx with pi/2 units down?