Exploring Reflections in Mathematics

The video tutorial covers transformations, focusing on reflections. It explains how to reflect points over the x-axis and y-axis, using examples to illustrate the process. The tutorial also demonstrates reflections on the coordinate plane with a triangle and uses a chart to further explain the concept. The video encourages viewers to rewatch and complete a Google form for practice.

What are the three types of geometric transformations discussed?

• Translations, reflections, rotations

• Scaling, rotation, translation

• Reflection, refraction, rotation

• Translation, reflection, dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What does a reflection transformation involve?

• Enlarging or reducing an object

• Rotating an object around a point

• Flipping an object over a line

• Shifting an object in space

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When reflecting a point over the x-axis, what happens to the y-coordinate?

• It becomes zero

• It remains the same

• It is multiplied by -1

• It is divided by the x-coordinate

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If a point (2, 3) is reflected over the x-axis, what is the new y-coordinate?

• 3

• -3

• 2

• 0

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the result of reflecting the point (-4, -2) over the x-axis?

• (2, -4)

• (-4, -2)

• (4, -2)

• (-4, 2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• Neither coordinate

• Both coordinates

• The x-coordinate

• The y-coordinate

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If a point (3, 4) is reflected over the y-axis, what are the new coordinates?

• (4, 3)

• (-3, 4)

• (3, 4)

• (-4, -3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the new x-coordinate of the point (6, 8) when reflected over the y-axis?

• 8

• -6

• 6

• -8

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

How does reflecting a triangle ABC in the x-axis affect its vertices?

• Coordinates remain unchanged

• Both coordinates are negated

• Y-coordinates are negated

• X-coordinates are negated

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the effect of reflecting a point over the y-axis according to the rules discussed?

• Y-coordinate is negated

• X-coordinate is negated

• Both coordinates are negated

• No change in coordinates

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5