Question

Which equation will produce the widest parabola when graphed?
A. y= 2x^2
B. y= -6x^2
C. y= -0.6x^2
D. y= 0.2x^2

Answer 1

These are vertical stretching of the graph y=x^2
When the coefficient of x^2 is >|1|, the graph is stretched vertically, or made narrower
When less than |1|, the graph is shrunk vertically, or made wider

Answer 2

So the closer to 0 the coefficient of x^2 is, the wider the graph will be