Difference between revisions of "AoPS Wiki:Problem of the Day/July 11, 2011"

Latest revision as of 20:49, 10 July 2011

If the graphs of $2y+x+3=0$ and $3y+ax+2=0$ are to meet at right angles, what is the value of $a$ ?

Revision as of 20:49, 10 July 2011 (view source) Btilm305 (talk \| contribs) (new problem)	Latest revision as of 20:49, 10 July 2011 (view source) Btilm305 (talk \| contribs) m (Protected "AoPSWiki:Problem of the Day/July 11, 2011": Problem of the Day ([edit=sysop] (indefinite) [move=sysop] (indefinite)))
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