Back to Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates — Problem 3 · Task Set 23

Exercises: Describing the Effect of Transformations Using Coordinates

Work through each section in order. For every transformation, apply the coordinate rule to each vertex carefully, watching the signs. Remember: the rotation rules below are for rotation about the origin.

Grade 8·21 problems·~35 min·Common Core Math - Grade 8·container·8-g-a-3

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Fluency Practice

$Triangle D E F plotted in the first quadrant with vertices at 2 comma 1, 4 comma 1, and 3 comma 5$

Triangle $DEF$ has vertices $D(2, 1)$ , $E(4, 1)$ , and $F(3, 5)$ . Reflect the triangle across the $y$ -axis using $(x, y) \to (-x, y)$ . Enter the image of vertex $F$ as an ordered pair.