Alexander Mccarthy
03/11/2024 · Primary School
Question The point \( A(-5,-8) \) is reflected over the point \( (-6,-3) \) and its image is point \( B \). What are the coordinates of point \( B \) ?
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To find the coordinates of point \( B \) after reflecting point \( A(-5,-8) \) over the point \( (-6,-3) \), we can use the reflection formula.
The reflection formula states that if a point \( P(x,y) \) is reflected over a point \( Q(a,b) \) to get a new point \( R(x',y') \), then the coordinates of point \( R \) can be found using the following formulas:
\[ x' = 2a - x \]
\[ y' = 2b - y \]
Given that point \( A(-5,-8) \) is reflected over the point \( (-6,-3) \) to get point \( B \), we can substitute the coordinates of point \( A \) and the point of reflection into the reflection formula to find the coordinates of point \( B \).
Substitute the coordinates of point \( A(-5,-8) \) and the point of reflection \( (-6,-3) \) into the reflection formula:
\[ x' = 2(-6) - (-5) = -12 + 5 = -7 \]
\[ y' = 2(-3) - (-8) = -6 + 8 = 2 \]
Therefore, the coordinates of point \( B \) are \( (-7, 2) \).
Quick Answer
The coordinates of point \( B \) are \( (-7, 2) \).
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