Can someone help me understand it Please !! I will give a medal !!

Graph a triangle (STU) and reflect it over the y-axis to create triangle S'T'U'.
Part 1: Describe the transformation using words. (3 points)
Part 2: Draw a line segment from point S to the reflecting line, and then draw a line segment from point S' to the reflecting line. What do you notice about the two line segments you drew? (2 points)
Part 3: Do you think you would see the same characteristic if you drew the line segment connecting T with the reflecting line and then T' with the reflecting line? How do you know?

Question

Can someone help me understand it Please !! I will give a medal !!

Graph a triangle (STU) and reflect it over the y-axis to create triangle S'T'U'.
Part 1: Describe the transformation using words. (3 points)
Part 2: Draw a line segment from point S to the reflecting line, and then draw a line segment from point S' to the reflecting line. What do you notice about the two line segments you drew? (2 points)
Part 3: Do you think you would see the same characteristic if you drew the line segment connecting T with the reflecting line and then T' with the reflecting line? How do you know?

anonymous · Answer

@ranga you think you can help me again?

anonymous · Answer

part 1, y values stay the same, x values are opposite in sign

anonymous · Answer

part 2 and 3 are confusing, points dont have derivative values...