A point is first translated 4 units up and then reflected across the -axis. What are the coordinates of the resulting point Q'?
Options
A
B
C
D
Answer & Analysis
Answer
A
Analysis
Question Analysis:
This question involves two consecutive geometric operations - a translation followed by a reflection across the -axis.
The main focus is accurately applying each transformation rule to the given point.
Key Concept Explanation:
1. Translation rule: When a point is translated units up, 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 4 units up ().
- Using the translation rule , substitute and .
- The new coordinates after translation are
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