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OpenStudy (anonymous):
If f(x) = x2 - 1, find f(3).
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OpenStudy (anonymous):
f(3)=3^2-1=8
OpenStudy (anonymous):
substitute .............
OpenStudy (anonymous):
x squared-1?
OpenStudy (anonymous):
|dw:1374858643568:dw|
OpenStudy (anonymous):
so its 8
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OpenStudy (anonymous):
=(3)^2 -1 =9-1 =8 :)
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