Question 86190
sketch the graph of the parabola 
y=-5x(squared)
----------
y=-5x^2
Plot three points and you would be able to sketch the parabola
If x=0, y=0 (this is the vertex
If x=1, y = -5
If x=-1 y = -5
See how the parabola opens down from the vertex at (0,0)?
{{{graph(400,300,-10,10,-10,10,-5x^2)}}}
========
Cheers,
Stan H.