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Mathematics
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Find three ordered pairs that result from the rule  (f(x)= 2x to the 2nd power minus 3.)Use at least one positive value and one negative value.  SHOW ALL OF YOUR WORK FOR FULL CREDIT!

Dec 21st, 2014

F(x)=(2x)^2 - 3

x = 1

f(1)=(2 • 1)^2 - 3

f(1)=4-3

      = 1

First ordered pair is x=1 and y=1

If X = 2

f(2)=(2•2)^2 -3

    =4^2 - 3

    =16 a 3

    =13

Next ordered pair is x=2 y=13

If x=-2

f(-2)=(2 • -2)^2 - 3

    = (-4)^2 - 3

    =16 - 3

    = 13

Next ordered pair is x = -2 y=13

If x=3

f(3)=(2 • 3)^2 - 3

    =(6)^2 - 3

    =36 - 3

    =33

another ordered pair is x=3 y=33

Take your pick of ordered pairs



   

Dec 21st, 2014

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