document.write( "Question 449566: What type of graph do you get when you multiply a linear graph by a linear graph??? \n" ); document.write( "

Algebra.Com's Answer #309342 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
What type of graph do you get when you multiply a linear graph by a linear graph???
\n" ); document.write( ":
\n" ); document.write( "Try it and see, two linear equations graphed
\n" ); document.write( "2x + 3
\n" ); document.write( "x - 5
\n" ); document.write( ":
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+10%2C+-10%2C+10%2C+2x%2B3%2C+x-5%29+\"$
\n" ); document.write( ":
\n" ); document.write( "Multiply these two equations
\n" ); document.write( "FOIL (2x+3)(x-5) = 2x^2 - 10x + 3x - 15 = 2x^2 - 7x - 15
\n" ); document.write( ":
\n" ); document.write( "Graph this equation on the same system
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+10%2C+-20%2C+10%2C+2x%2B3%2C+x-5%2C+2x%5E2-7x-15%29+\"$
\n" ); document.write( ":
\n" ); document.write( "You can see it is a parabola and the parabola's x intercepts are the same as the linear equation intercepts
\n" ); document.write( " \n" ); document.write( "

\n" );