# Need help on math

Discussion in 'Lounge' started by coconutbowling, Feb 19, 2009.

1. ### coconutbowling Well-Known Member

Dec 8, 2008
3,208
7
0
Student
Pennsylvania
#1
If I have an equation in Standard form, how do I change it to Graphing (vertex) form?

How do I make: y = ax^2 + bx + c, become y = a(x-h)^2 + k

2. ### DHrox Well-Known Member

Jan 21, 2009
1,513
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College Student
Baltimore, MD
#2
3. ### coconutbowling Well-Known Member

Dec 8, 2008
3,208
7
0
Student
Pennsylvania
#3
Thanks. Google wasn't being friendly for me, and I don't have my papers from two years ago.

4. ### DHrox Well-Known Member

Jan 21, 2009
1,513
0
0
College Student
Baltimore, MD
#4

5. ### Fletch Well-Known Member

Jan 14, 2009
1,533
0
0
The Internet
#5
Don't know if u still need any help, cause those sites looked quite confusing to me, but in general...

h and k are the coordinates of the vertex of the parabola and are equal to -

h = -b/(2a)
k =( c-b^2)/(4a)

6. ### s0mah Well-Known Member

Dec 25, 2008
431
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0
failing PHY tests
little town of bethlehem
#6
Factor by completing the square.

7. ### coconutbowling Well-Known Member

Dec 8, 2008
3,208
7
0
Student
Pennsylvania
#7
Thanks guys for the help. I'm still a little confused, but I think I have it now.