document.write( "Question 974870: Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form. \n" ); document.write( "

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Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form.
\n" ); document.write( "vertex form of equation : y=mx+b, m=slope, b=y-intercept
\n" ); document.write( "slope ∆y/∆x=(5-(-11))/(-4-(-2))=16/-2=-8
\n" ); document.write( "equation: y=-8x+b
\n" ); document.write( "solve for b using coordinates of given point (-4,5) on the curve
\n" ); document.write( "b=y+8x=5+8*-4=-27
\n" ); document.write( "equation=y=-8x-27 \n" ); document.write( "

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