The vertex form of a quadratic equation is: y = a (x - h)² + k where
"a" is the vertical stretch (shrink/compression if |a| < 1)
(h, k) is the vertex
In the given equation of y = 2x², the a-value has increased so it is stretched. When the graph stretches, the sides will get closer together thus the parabola will become narrower.
and get 31.40 cm squared
