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math 12

posted by on .

desribe how the graph of each funtion compares to the graph of y = l x l (absolute value)

a) y = 1 2x l
b) y = l 1/2x l
c) 2y = l x l
d) 1/2y = l x l

i don't understand when it is vertical/horizontal and when it is expansion or compression

  • math 12 - ,

    a is expanded, y is twice what it was before for any x.

    d) is expanded, y is (2abs x ) twice what it was before.

  • math 12 - ,

    a) is horizontal compression by 1/2

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