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Mathematics 7 Online
undeadknight26 (undeadknight26):

Help please? easy?

undeadknight26 (undeadknight26):

undeadknight26 (undeadknight26):

@Ashleyisakitty @AkashdeepDeb @whpalmer4 @eliassaab @radar @thomaster @texaschic101 @FlvsGirl @ganeshie8 @Gabylovesyou

OpenStudy (whpalmer4):

if you have a parabola in the form \(y = ax^2+bx+c\), the x-coordinate of the vertex is always at \[x=-\frac{b}{2a}\] As you said, easy :-)

undeadknight26 (undeadknight26):

So C?

OpenStudy (whpalmer4):

Why don't you tell me what you get for the x-coordinate for each vertex, and show me your work? That will be more useful than asking "is it answer choice xyz?"

undeadknight26 (undeadknight26):

haha okay.

OpenStudy (whpalmer4):

The goal here is that you be able to do the work with sufficient confidence that you don't have to ask, you know which answer it is (and are correct, of course!)

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