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OpenStudy (anonymous):
Which of the following is a quadratic function in standard form for the set of points ? (0, -1) (1, 3) (2, 9) a f(x) = x^2 + 3x -1 b f(x) = x^2 + 5x -1 c f(x) = -x^2 + 5x -1 d f(x) - 3x^2 + x -1
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OpenStudy (anonymous):
answer is a
OpenStudy (amoodarya):
put the points and check them !
OpenStudy (amoodarya):
OpenStudy (anonymous):
Thanks!
OpenStudy (anonymous):
you're welcome
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