Which graph represents a function with direct variation? A coordinate grid with a line passing through (0, 1) and (1, 1)

A coordinate grid with a line passing through (negative 2, 1), (0, 0) and (2, negative 1)

A coordinate grid with a line passing through (negative 3, negative 3), (0, negative 2) and (3, negative 1)

A coordinate grid with a line passing through (negative 2, negative 2), (0, 1) and (2, 4)

Given: ab ≅ cd and ad ≅ bc prove: abcd is a parallelogram. 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? triangle angle sum theorem sas congruency theorem sss congruency theorem cpctc