Pre-Algebra Intervention: Dilations

Triangle E’F’G’ is a dilation of triangle EFG.

Which rule best represents the dilation shown?

Trapezoid A’B’C’D’ is the dilation of trapezoid ABCD.

Which algebraic representation shows this dilation?

Triangle ABC is dilated by a scale factor of one-half to form Triangle A’B’C’ with the origin as a center of dilation.

Which rule represents this dilation?

Quadrilateral WXYZ was dilated with the origin as the center to create quadrilateral W’X’Y’Z’.

Which rule best represents the dilation that was applied to quadrilateral WXYZ to create quadrilateral W’X’Y’Z’?

Is this an enlargement or a reduction?

Is this an enlargement or a reduction?

Is this an enlargement or a reduction?

Which of the following algebraic rules represents an enlargement?

Which of the following algebraic rules represents a reduction?

How do you feel about dilations?