Reflection of Triangle ABC Across the Y-Axis

What is the first step in reflecting a triangle across the y-axis?

• Measure the distance of each point from the y-axis

• Identify the midpoint of the triangle

• Translate the triangle upwards

• Rotate the triangle 90 degrees

How do you find the new position of point A when reflecting across the y-axis?

• Move it to the same distance on the left of the y-axis

• Move it to the same distance on the right of the y-axis

• Move it downwards by the same distance

• Move it upwards by the same distance

What happens to the y-values of the points when a triangle is reflected across the y-axis?

• They become negative

• They become zero

• They double

• They remain the same

What is the new x-coordinate of point B if its original x-coordinate was 7?

• -3

• 0

• 7

• -7

Which strategy can be used for reflecting points across the y-axis?

• Double the x-values and keep y-values the same

• Make x-values opposite and keep y-values the same

• Swap x and y values

• Add 5 to both x and y values