document.write( "Question 836304: I have sent in my graph and solutions to my school and they sent my work back saying my vertex was wrong. The equation is -3x^2-6x-5. I had (0,-5) as my vertex and I can't figure out why its wrong or what else it could. Please help.
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #504083 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
I have sent in my graph and solutions to my school and they sent my work back saying my vertex was wrong. The equation is -3x^2-6x-5. I had (0,-5) as my vertex and I can't figure out why its wrong or what else it could.
\n" ); document.write( "Note: (0,-5) is the y-intercept.
\n" ); document.write( "-----
\n" ); document.write( "Your Problem:
\n" ); document.write( "Vertex occurs where x = -b/(2a) = 6/(-6) = -1
\n" ); document.write( "f(-1) = -3(-1)^2-6(-1)-5 = -3+6-5 = -2
\n" ); document.write( "---
\n" ); document.write( "Vertex is (-1,-2)
\n" ); document.write( "---------------
\n" ); document.write( " $\"graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C-3x%5E2-6x-5%29\"$
\n" ); document.write( "-----------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "================= \n" ); document.write( "

\n" );