Triangle has vertices at , , and . What are the coordinates of vertex B' after reflecting the triangle over the horizontal line ?
Options
A
B
C
D
Answer & Analysis
Answer
A
Analysis
Question Analysis:
This question assesses understanding of reflecting a point over a horizontal line.
The task is to apply the reflection rule to vertex of triangle .
Key Concept Explanation :
Reflection over a horizontal line follows the rule:
- The -coordinate remains unchanged.
- The new -coordinate is calculated as .
Step-by-Step Solution:
Original coordinates of : .
Reflection line: .
New -coordinate:
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