Question

14/40
what is a reflection?
when you slide an object form one place to another.
when you resize an object.
when you flip or mirror an object across a line.
when you turn an object around a point.

Explanation:

A reflection in geometry is a transformation that creates a mirror image of an object across a line (called the line of reflection). Sliding an object is a translation, resizing is a dilation, and turning around a point is a rotation.

Answer:

When you flip or mirror an object across a line.