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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.”
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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.
