Reflecting a triangle over the origin

The video tutorial covers the concept of reflecting points across the X and Y axes, and introduces the idea of reflecting the origin. The teacher explains the rules for these reflections, emphasizing the transformation of coordinates. The tutorial includes a practical application of these rules by graphing points and comparing the results of different types of reflections.

What is the rule for reflecting a point across the origin?

• Negative X, Positive Y

• Negative X, Negative Y

• Positive X, Negative Y

• Positive X, Positive Y

When reflecting a point across the origin, which axes are involved?

• Both X and Y axes

• Neither X nor Y axes

• Only the Y-axis

• Only the X-axis

What is the new coordinate of point A (1, 3) after reflecting across the origin?

• (-1, -3)

• (1, 3)

• (1, -3)

• (-1, 3)

How does reflecting the origin compare to reflecting across the X and Y axes?

• It is unrelated to axis reflections

• It is a combination of both axis reflections

• It is the same as reflecting across the Y-axis

• It is the same as reflecting across the X-axis

What is the new coordinate of point C (-1, 5) after reflecting across the origin?

• (-1, 5)

• (1, -5)

• (1, 5)

• (-1, -5)