Math Problem Statement
The image point of A after a translation left 3 units and down 3 units is the point B(-8, -3). Determine the coordinates of the pre-image point A.
Solution
The problem states that the image point of after a translation left 3 units and down 3 units is the point . We need to determine the coordinates of the pre-image point .
To reverse a translation:
- A translation left by 3 units means to go right by 3 units.
- A translation down by 3 units means to go up by 3 units.
Given point , to find :
- Reverse the horizontal shift: Add 3 to the x-coordinate of .
- Reverse the vertical shift: Add 3 to the y-coordinate of .
Thus, the coordinates of the pre-image point are:
Would you like more details, or do you have any other questions?
Here are 5 related questions for further exploration:
- What happens if the translation had been up instead of down?
- How do you determine the new coordinates after a different type of transformation (e.g., reflection)?
- How can translations be represented algebraically?
- What is the geometric interpretation of translating a shape or point?
- What happens if you translate a point in both directions (left-right and up-down)?
Tip: When reversing translations, always think of "undoing" the steps applied, such as moving in the opposite direction.
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Math Problem Analysis
Mathematical Concepts
Translation
Coordinate Geometry
Formulas
Translation formula: (x', y') = (x + h, y + k)
Theorems
Translation Theorem
Suitable Grade Level
Grades 6-8