How do you identify the important parts of $y= -7x^2 +2x$ to graph it?

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Answer 1 · 2015-09-24T15:50:39

The given equation represents a parabola.

On simplifying the equation,we get -(y-1/7) = ( $sqrt7$ x -1/ $sqrt7$ )^2

This equation represents a parabola with vertex (1/7,1/7)

graph{-7x^2+2x [-0.377, 0.8064, -0.33, 0.2623]}

How do you identify the important parts of y= -7x^2 +2xy= -7x^2 +2x to graph it?