cutiecomittee123
  • cutiecomittee123
Reflecting the graph of y=cos x over the x-axis and the y-axis is the same true or false please explain why!!!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Vocaloid
  • Vocaloid
a sketch of the graph will be helpful here|dw:1443658778182:dw|
Vocaloid
  • Vocaloid
reflecting over the y-axis gives us:|dw:1443658820875:dw|
cutiecomittee123
  • cutiecomittee123
I am asuming that it is true because if you cut the graph in half and flipped it over the y axis it will match up and if you did the same thing over the x axis it would be the same just on the other side

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Vocaloid
  • Vocaloid
nope, not true
cutiecomittee123
  • cutiecomittee123
wait so its not the same then because when you reflect over the y axis it moves over
Vocaloid
  • Vocaloid
notice what happens when you reflect over the x-axis
Vocaloid
  • Vocaloid
|dw:1443658919749:dw|
cutiecomittee123
  • cutiecomittee123
No they are not
cutiecomittee123
  • cutiecomittee123
so either way is going to be different, Reflecting y=cos x over the x axis is different and the y axis reflection is also different in comparison to the origional graph.
Vocaloid
  • Vocaloid
almost, notice what happens when you reflect over the y-axis
Vocaloid
  • Vocaloid
|dw:1443659241846:dw|
Vocaloid
  • Vocaloid
(since cos(x) is symmetric about the y-axis, reflecting over the y-axis does nothing while reflecting over the x-axis changes the graph)
cutiecomittee123
  • cutiecomittee123
okay got it

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