Math Problem Statement

What is the image of the point left parenthesis, minus, 5, comma, minus, 4, right parenthesis(−5,−4) after a rotation of 180, degrees180∘ counterclockwise about the origin?

Solution

To determine the image of the point (5,4)(-5, -4) after a rotation of 180180^\circ counterclockwise about the origin, we can use the rotation rule:

When a point (x,y)(x, y) is rotated 180180^\circ counterclockwise about the origin, its new coordinates are (x,y)(-x, -y).

Solution:

Given the point (5,4)(-5, -4): New coordinates=((5),(4))=(5,4)\text{New coordinates} = (-(-5), -(-4)) = (5, 4)

Final Answer:

The image of the point (5,4)(-5, -4) after a rotation of 180180^\circ counterclockwise about the origin is (5,4)(5, 4).

Would you like a visual representation or further explanation?
Here are 5 related questions you might find interesting:

  1. What are the coordinates of a point after a 9090^\circ counterclockwise rotation?
  2. How do you find the image of a point after reflection over the y-axis?
  3. How do rotation matrices work in transformations?
  4. What happens to the distance of a point from the origin after rotation?
  5. Can a 270270^\circ counterclockwise rotation be equivalent to a 9090^\circ clockwise rotation?

Tip: Always check the rotation direction (clockwise or counterclockwise) as it affects the result.

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Math Problem Analysis

Mathematical Concepts

Coordinate Geometry
Transformations
Rotations

Formulas

Rotation rule for 180°: (x, y) → (-x, -y)

Theorems

Rotation theorem in the Cartesian plane

Suitable Grade Level

Grades 8-10