SOLUTION: Not sure if this goes in this section or the trig section. But I need to graph the function {{{ y=(5/2)cos(x+pi) }}} To draw the graph, I need to plot all the x-intercepts,

Question 985898: Not sure if this goes in this section or the trig section.
But I need to graph the function
To draw the graph, I need to plot all the x-intercepts, minima, and maxima within one period.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
This is the cosine function shifted pi radians to the right.
The amplitude is +/-2.5
cosine of pi is -2.5, which is where it starts. That is a minimum. The maximum will be at x=pi.
The zeros will be at x=(pi/2) and x=3pi/2.
In summary, it is 2.5 times the cosine curve shifted pi radians to the right.

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