Transformations in the Coordinate Plane

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# Transformations in the Coordinate Plane - PowerPoint PPT Presentation

Transformations in the Coordinate Plane. February 18, 2014 until… (5 School days). Transformations move figures in the coordinate plane. An isometry is a translation where the pre-image and image are congruent. Translations. You may think of a translation as a “slide.”

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### Transformations in the Coordinate Plane

February 18, 2014 until… (5 School days)

Transformations move figures in the coordinate plane.

An isometry is a translation where the

pre-image and image are congruent.

Translations
• You may think of a translation as a “slide.”
• You will discover what moves a figure up, down, left, or right.
Reflections
• You may think of a reflection as a “flip.”
• You will discover the rules for reflection over the x-axis, the y-axis, the line y = x, and other lines.
Rotations
• You may think of a rotation as a “turn.”
• We normally rotate about the origin, and we normally rotate counterclockwise, but not always.
Dilations
• You may think of a dilation as a “shrink” or “grow.”
• Dilations must have a scale factor.
• Dilations are the only transformation that is NOT an isometry.