In the similarity transformation of ∆ABC to ∆DFE, ∆ABC was dilated by a scale factor of [?], reflected across the [ ], and moved through the translaton [ ]. A(-4, -2), B(0,-2), C(0,-4). D(1,1), E(3,2), F(3,1).

A. 2
B. 1/2
C. 3
D. 1/3​

A. X-axis
B. Origin
C. Y-axis
D. x=2

Acomposition of transformations maps δxyz to δx"y"z". the first transformation for this composition is , and the second transformation is a 90° rotation about point x'.

Item 1 solve for s. s+24=90 −114 −66 66 114

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?