The ordered pairs shown below follow a pattern. (0,2), (1,3), (2,4), (3,5), (4,6)
Which graph shows the ordered pair with an x-coordinate of 6 that follows this
pattern?
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
0
1
2 3 4 5 6 7 8 9 10
0
1 2 3 4 5 6 7 8 9 10

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