A rectangle has vertices , , and . The rectangle is first translated 3 units down and then reflected across the -axis. What are the coordinates of the image of vertex ?
Options
A
B
C
D
Answer & Analysis
Answer
A
Analysis
Question Analysis:
This question combines a translation and a reflection across the -axis for a vertex of a rectangle.
The main focus is correctly applying the two transformation rules in sequence.
Key Concept Explanation:
1. Translation rule: When a point is translated units down, the new coordinates are .
2. Reflection across the -axis rule: When a point is reflected across the -axis, the new coordinates are .
Step - by - Step Solution:
1. Translation of point :
- Given a translation 3 units down ().
- Using the translation rule , substitute and .
- The new coordinates after translation are .
2. Reflection of the translated point across the
Want More Practice Questions?
Access thousands of practice questions with detailed explanations on Scholardog.