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#1 2008-03-04 00:44:44
- lol1
- Guest
Algebra help!
what is the vertex of this problem: 3x(squared)+2x-10?
#2 2008-03-04 04:00:06
- Daniel123
- Member
- Registered: 2007-05-23
- Posts: 663
Re: Algebra help!
Just complete the square.
The vertex of a curve is a turning point (a maximum or minimum point). As this is a quadratic, there can only be one turning point, and it is a minimum as the x² term is positive.
Therefore, the smallest value the curve could take is
. This is because the smallest possible value the brackets could take is 0 (as a squared term is always positive), which would occur whenThe vertex of the curve would therefore have the coordinates
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#3 2008-03-04 10:42:12
- lol1
- Guest
Re: Algebra help!
ok sweet. ty
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