Geometry

Unit 9

Transformations

13 days

9.1  Find the coordinates of an image (given a graph, rule of transformation, or pre-image coordinates) after a reflection across the x axis,yaxis, y = x, y = -x, y = a, or x = b. Graph the result.

9.2  Find the coordinates of an image (given a graph, rule of transformation, or pre-image coordinates) after atranslation, glide reflection, or a composition of reflections. Graph the result.

9.3  Find the coordinates of an image (given a graph, rule of transformation, or pre-image coordinates) after a rotation of 90, 180, and 270 degrees counterclockwise and counterclockwise. Graph the result.

9.4  Determine whether a figure has line, point, or rotational symmetry or neither.

9.5  Determine if a dilation is an enlargement or reduction. Find the scale factor k between two similar figures.

9.6  Find the coordinates of an image (given a graph, rule of transformation, or pre-image coordinates) after a dilation with a scale factor of k.  Graph the result.