Math Problem Statement

Graph the preimage and image of each rotation. Determine the coordinates of A'. Given: A(-2, -5), with a 180° rotation.

Solution

The image you uploaded presents a task involving a rotation and asks to determine the coordinates of point AA', given the preimage A(2,5)A(-2, -5) and a rotation of 180°.

To solve this:

Rotation of 180°

When a point (x,y)(x, y) is rotated 180° about the origin, the coordinates of the point change as follows: (x,y)=(x,y)(x', y') = (-x, -y) So, applying this rule to point A(2,5)A(-2, -5):

A=((2),(5))=(2,5)A' = (-(-2), -(-5)) = (2, 5)

Thus, the coordinates of AA' after a 180° rotation are A(2,5)A'(2, 5).

The correct answer is A'(2, 5).

Would you like more details or have any other questions? Here are five related questions that expand on this concept:

  1. How do the coordinates change under a 90° clockwise rotation?
  2. How do you perform a reflection over the x-axis for any point (x,y)(x, y)?
  3. How do the coordinates change under a 270° counterclockwise rotation?
  4. What is the formula for a 180° rotation about a point other than the origin?
  5. How would the rotation change if it was about a point different from the origin?

Tip: Always check the direction and center of rotation when solving transformation problems.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Geometry
Transformations
Rotations

Formulas

Rotation of a point: (x, y) rotated 180° becomes (-x, -y)

Theorems

Rotation Theorem: A 180° rotation around the origin reflects a point over both axes.

Suitable Grade Level

Grades 7-10