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July 2nd, 2012, 12:59 AM  #1 
Senior Member Joined: Apr 2012 Posts: 112 Thanks: 0  Finding c from graph
Another one! Could get the answer for b this time, but not c. The equation for this graph is acos(bx)+c I got a and b this time, but not c, which is 7/2! How do I arrive at 7/2? Thank you! 
July 2nd, 2012, 03:00 AM  #2 
Math Team Joined: Nov 2010 From: Greece, Thessaloniki Posts: 1,989 Thanks: 133 Math Focus: pre pre pre pre pre pre pre pre pre pre pre pre calculus  Re: Finding c from graph [color=#000000] The range of values of y is the set [2,5], y is a periodic function so . Now the period of y is ?, so and so . and .[/color] 
July 2nd, 2012, 03:02 AM  #3 
Senior Member Joined: Aug 2008 Posts: 113 Thanks: 0  Re: Finding c from graph Do you know the value of at ? This is the value of Best regards, 

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