Please help me on this question.

Question

Examine the following graph, where a horizontal dilation maps P(x) to I(x).

Which statement best describes the dilation?

1. a reflection
2. a horizontal stretch
3. a horizontal compression
4. a translation

Answer 1

it's not a reflection or translation

it's either a horizontal stretch or compression

the two sides of the parabola are stretched further apart, horizontally, going from P to I