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xy-plane

by Nailya » Fri Apr 10, 2009 5:45 pm
In the xy plane, at what two points does the graph of y=(x+a)(x+b) intersect x-axis?

1)a+b=-1
2) the graph intersects the y axis at (0;6)
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by vittalgmat » Fri Apr 10, 2009 10:20 pm
see this link
https://www.beatthegmat.com/problem-from ... 13502.html
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