Learn how to reflect a triangle over the y axis ex 2

The video tutorial explains how to determine a reflection over the Y axis using symmetry. It introduces the concept of reflection, explains the rule for reflecting coordinates, and demonstrates how to apply this rule to specific points. The tutorial also includes a graphing exercise to visualize the reflection process, concluding with a summary of the key points.

What is the primary concept used to determine a reflection over the Y-axis?

• Scaling

• Rotation

• Translation

• Symmetry

When reflecting a point over the Y-axis, which coordinate changes?

• Both X and Y coordinates

• X-coordinate

• Y-coordinate

• Neither coordinate

If a point (5, 2) is reflected over the Y-axis, what will be the new coordinates?

• (5, 2)

• (-5, 2)

• (5, -2)

• (-5, -2)

What remains unchanged when a shape is reflected over the Y-axis?

• The X-coordinates

• The shape's orientation

• The Y-coordinates

• The distance from the X-axis

After reflecting a shape over the Y-axis, what is true about the new image?

• It is a mirror image with opposite X-coordinates

• It is a different shape

• It is translated to a new position

• It is rotated 90 degrees