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Question
Triangle ABC is reflected along the line y=0. What will be the image of the point A(If the unit squares are marked by the scale)?
Triangle ABC is reflected along the line y=0. What will be the image of the point A(If the unit squares are marked by the scale)?
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Solution
The correct option is B (9,−7)
On a coordinate plane, you can be asked to reflect a point like (a,b) over the x- axis(y=0). You would get the answer of (a,-b) since this new point (prime) is a mirror image of the first point (original).So point A(9,7) reflection along x axis is A'(9,-7).
On a coordinate plane, you can be asked to reflect a point like (a,b) over the x- axis(y=0). You would get the answer of (a,-b) since this new point (prime) is a mirror image of the first point (original).So point A(9,7) reflection along x axis is A'(9,-7).
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