haleyking345
How do you graph -cos (2x)?
I am not sure.
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luxiliu
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do you know what a normal cos graph looks like? Well, because you want a negative one, you would do it upside down. and since you want "2x", it will be squashed twice as much towards the y axis
haleyking345
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So, is the period still 2pie? And do you stay negative the whole way?
petewe
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period is 2pi/k
haleyking345
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|dw:1355613895882:dw|
haleyking345
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is that right?
petewe
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thats -cosx, you haven't accounted for the 1/2 compression
haleyking345
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|dw:1355614177155:dw|
UnkleRhaukus
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|dw:1355614330835:dw|
haleyking345
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ok, so flip it upside down and that will give me y=-cos 2x?
UnkleRhaukus
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thats right
haleyking345
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k thank you