Question

In 15 words or fewer, describe what happens to the coordinates when

a graph is stretched vertically.

Answer 1

Answer: The graph becomes narrower

Explanation:

The vertex form of a quadratic equation is: y = a(x - h)² + k where

• |a| represents the vertical stretch if |a| > 1, vertical shrink if |a| < 1
• (h. k) represents the vertex

A vertical stretch means the curve gets narrower.

A vertical shrink/compression means the curve gets wider.