To determine whether the dilation passes through the center of dilation, we need to understand how dilations work in geometry.
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When a line segment AB is dilated from a center of dilation point O, the image A'B' will be formed. If the scale factor is greater than 1, it is an enlargement, and if it is less than 1, it is a reduction.
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A dilation with respect to a point (center of dilation) means that each point on the line segment moves closer to (or further away from) that point based on the scale factor.
- If the line segment A'B' includes point O, then we say A'B' passes through the center of dilation.
- If A'B' does not include point O, then A'B' does not pass through the center of dilation.
Based on the given responses, we can analyze each one:
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A′B′ passes through the center of dilation because it is an enlargement of AB by a scale factor of 4.
- This could indicate that A'B' passes through the center if the center is on the segment or aligned accordingly.
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A′B′ does not pass through the center of dilation because it is a reduction of AB by a scale factor of 1/4.
- This would imply that it’s unlikely for A'B' to include the center if it’s a reduction and does not maintain alignment with the original line segment.
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A′B′ passes through the center of dilation because it is taken to a line parallel to AB.
- A dilation involving a line drawn through the center leads to the conclusion that line segments remain proportionate; however, this does not necessarily confirm passing through the center.
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A′B′ does not pass through the center of dilation because it is taken to a line parallel to AB.
- If A'B' is transformed into a line parallel to AB and does not intersect the center of dilation, this result aligns with the idea that it does not pass through O.
To summarize, if A'B' is an enlargement or reduction based on whether it maintains direct alignment with the center of dilation while including or excluding it, we can determine if it passes through the center:
Conclusion: If A'B' is simply parallel to X and does not include O, then the correct response is that A′B′ does not pass through the center of dilation because it is taken to a line parallel to AB.