Find an equation for the quadratic function whose graph contains the points (-6,3), (1,-32), and (-4,3). I have many problems similar to this but I don't know how to set it up. Help would be great =]
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Originally Posted by Kitty216 Find an equation for the quadratic function whose graph contains the points (-6,3), (1,-32), and (-4,3). I have many problems similar to this but I don't know how to set it up. Help would be great =] All quadratics can be written in the form . By substituting the three points, you end up with three equations in three unknowns that you can solve simultaneously.
Originally Posted by Kitty216 Find an equation for the quadratic function whose graph contains the points (-6,3), (1,-32), and (-4,3). I have many problems similar to this but I don't know how to set it up. Help would be great =] solve the system for the coefficients , , and .
oh I see. Thanks guys!! Out of curiosity, what form of equation would be used if the 3 points were on a circle?
Originally Posted by Kitty216 oh I see. Thanks guys!! Out of curiosity, what form of equation would be used if the 3 points were on a circle? Then it would be where is the co-ordinate of the centre and is the radius. If you have three points, once again you will get three equations in three unknowns.
oh ok! Thank you for the help!
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