I have a question assigned that states:(adsbygoogle = window.adsbygoogle || []).push({});

use gaussian elimination to find 2 distinct parabolas (y=ax^2+bx+c (one with a greater than 0 and one larger than 0)) that can pass through (-1,3) and (2,12). How many parabolas can pass through the given points and why?

Then use only your above results to determine the equation of the straight line that passes through the 2 points.

ok what i did is i made 2 equations:

3=a-b+c

12=4a+2b+c and used gaussian elimination to solve for the variables but the only one that can be found is c which equals -6.

Am i completely on the wrong track or is there something i am overlooking when im doing this

please help

thanks

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# Homework Help: Parabala question

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