Geometry Flashcard: Lesson 3-1

Front

Reflecting across the x-axis changes the ___-_____

Back

y-coordinate

Front

State the line of reflection for a reflection across the x-axis.

Back

Reflection across x-axis

Front

Which answer shows a reflection across the x-axis?

Back

c

Front

Is the picture being reflected in the y-axis or x-axis?

Back

y-axis

Front

What is a reflection?

Back

When you flip or mirror an object across a line.

Front

What is the definition of reflection in geometry?

Back

A transformation that flips a figure over a line.

Front

What happens to the x-coordinate when reflecting over the x-axis?

Back

It remains unchanged.

Front

What happens to the y-coordinate when reflecting over the x-axis?

Back

It changes sign.

Front

What is the line of reflection for a reflection across the y-axis?

Back

Reflection across y-axis

Front

If a point A(2, 3) is reflected over the x-axis, what are the coordinates of A'?

Back

A'(2, -3)