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Question

The reflection point of A(-6, 10) about Y = 2 is (c, d). The value of c + d is ___.

A
-12
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B
12
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C
6
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D
12
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Solution

The correct option is A -12
Reflection about Y = 0;
X - coordinate remain same.
Y - coordinate change sign.
Reflection about Y = a;
X - coordinate remain same.
Y - coordinate change sign and value is reduced by 2a.
The reflection point of A(-6, 10) about Y = 2 => (-6, -6)
Therefore, The value of c + d = -12

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