document.write( "Question 140722: i need to graph $\"f%28x%29=-3x%5E2%2Bx-5\"$ Can I use f(x)=mx+b? The $\"x%5E2\"$ is throwing me off, can you help? \n" ); document.write( "

Algebra.Com's Answer #102445 by checkley77(12844) $\"\"$ $\"About$

You can put this solution on YOUR website!
Thank you for this answer. Can you explain how to get data points to graph from
\n" ); document.write( "this equation? I promise I am not being intentionally dense.
\n" ); document.write( "To get any points to graph all you have to do is set x to any value & saolve for y [f(x)]
\n" ); document.write( "example:
\n" ); document.write( "let x=1
\n" ); document.write( "-3*1^2+1-5
\n" ); document.write( "-3*1+1-5
\n" ); document.write( "-3+1-5=-7 the y value when x=1 or (1,-7)
\n" ); document.write( "let x=-2
\n" ); document.write( "-3*-2^2-2-5
\n" ); document.write( "-3*4-2-5
\n" ); document.write( "-12-2-5=-19 the y value for x-=2 (-2,-19)
\n" ); document.write( "hope this helps
\n" ); document.write( "---------------------------------------------------
\n" ); document.write( "f(x)=-3x^2+x-5
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-25%2C+10%2C+-3x%5E2+%2Bx+-5%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -25 to 10, -3x^2 +x -5). \n" ); document.write( "

\n" );