December 26th, 2006, 02:18 PM  #1 
Member Joined: Nov 2006 From: BIG APPLE Posts: 63 Thanks: 0  Sketch
sketch the graph of y = sec ( x + pi/2)

December 26th, 2006, 03:12 PM  #2 
Senior Member Joined: Nov 2006 From: I'm a figment of my own imagination :? Posts: 848 Thanks: 0 
I hope you know the graph of y=sec(x). y=a{sec[(xc)/b]}+d is shifted up d units and left c units, and is stretched vertically a units and horizontally b units (make sure you stretch it before shifting it!!!). In your equation, the only one of those operations involved is shifting the graph right pi/2 units, i.e., left pi/2 units (a positive shift in one direction is equivalent to a negative shift in the opposite direction).


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