Math Problem Statement

Write the coordinates of the vertices after a reflection over the x-axis.

Solution

To find the coordinates of the vertices after a reflection over the x-axis, we will change the y-coordinates of each point to their opposite sign while keeping the x-coordinates the same.

The given coordinates are:

  • Q(2,2)Q(2, -2)
  • R(6,2)R(6, -2)
  • S(6,10)S(6, -10)
  • P(2,10)P(2, -10)

Reflected Coordinates

  • Reflection over the x-axis changes (x,y)(x,y)(x, y) \to (x, -y).
    Applying this rule:
  1. Q(2,2)Q(2,2)Q(2, -2) \to Q'(2, 2)
  2. R(6,2)R(6,2)R(6, -2) \to R'(6, 2)
  3. S(6,10)S(6,10)S(6, -10) \to S'(6, 10)
  4. P(2,10)P(2,10)P(2, -10) \to P'(2, 10)

Final Answer:

The coordinates of the vertices after reflection over the x-axis are:

  • Q(2,2)Q'(2, 2)
  • R(6,2)R'(6, 2)
  • S(6,10)S'(6, 10)
  • P(2,10)P'(2, 10)

Would you like a visual representation of the reflected figure or further clarification?


Related Questions:

  1. What happens if you reflect the figure over the y-axis instead?
  2. How do you reflect a figure over both the x-axis and y-axis?
  3. How can you determine the new coordinates after a translation?
  4. What is the general rule for reflecting a point over the origin?
  5. How would the reflection change if it were over the line y=xy = x?

Tip:

Always remember, when reflecting over the x-axis, the y-coordinate changes sign, but the x-coordinate remains the same.

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Math Problem Analysis

Mathematical Concepts

Reflections
Coordinate Geometry
Transformations

Formulas

Reflection rule: (x, y) → (x, -y)

Theorems

Reflection across the x-axis

Suitable Grade Level

Grades 6-8