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OpenStudy (anonymous):
Determine the number of solutions for the quadratic function f(x) = x2 − 6x + 9
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OpenStudy (lgbasallote):
use the determinant b^2 - 4ac (-6)^2 - 4(1)(9) what do you get?
OpenStudy (anonymous):
ummm/.... idk :P
OpenStudy (lgbasallote):
what is (-6)^2?
OpenStudy (anonymous):
-36
OpenStudy (lgbasallote):
not exactly (-6)^2 = -6 x -6 <--what is that?
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OpenStudy (anonymous):
36
OpenStudy (lgbasallote):
better
OpenStudy (lgbasallote):
what's 9 x 4?
OpenStudy (anonymous):
36 haha
OpenStudy (lgbasallote):
so what's (-6)^2 - 4(1)(9)?
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OpenStudy (anonymous):
0?
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