Parallel Lines After a Transformation
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Parallel Lines After a Transformation
Parallel lines after a transformation: eight problems on the slope of a line and of a parallel line after a slide, a reflection or a rotation. Parallel lines stay parallel. Grade 8, with an answer key.
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Make a new sheetSheet 123 of 3674, each with its own answer key · Back to Sheet 1
- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Printing
- Black and white
- Related curriculum
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Move shapes on a coordinate grid by translations, reflections in an axis and rotations about the origin, give the new coordinates, and know that these moves keep lengths and angles the same.
Reviewed by Mr. Robert Harrison, Teacher. How we check worksheets
How to use this sheet
- Have the child trace the shape on thin paper and slide, flip or turn the tracing to check each answer.
- Move one vertex at a time and label the new points with prime marks, such as A′.
- Ask what stays the same after each transformation: side lengths, angles, size.
Common mistakes
- Reflecting across the wrong axis. A reflection across the x-axis changes the sign of y.
- Rotating the wrong way. Clockwise is the way the hands of a clock move.
- In a dilation, adding the scale factor instead of multiplying by it.
