Find the linear equations written in standard form. Select all that apply. O x+y = -1 O-3x = y O x + 4y = 0 O y = 5x – 2 O x= 3 – 0.1y Bx - 3y = 20

Given: in quadrilateral wxyz , and bisect each other at point a. prove: quadrilateral wxyz is a parallelogram. statement reason 1. and bisect each other. given 2. wa = ya xa = za definition of bisection 3. m∠yaz = m∠xaw vertical angles theorem 4. sas criterion for congruence 5. ∠ ywx ≅ ∠wyz corresponding angles of congruent triangles are congruent. 6. || converse of alternate interior angles theorem 7. m∠xay = m∠zaw vertical angles theorem 8. ∆xay ≅ ∆zaw sas criterion for congruence 9. ∠xzw ≅ ∠zxy corresponding angles of congruent triangles are congruent. 10. || converse of alternate interior angles theorem 11. quadrilateral wxyz is a parallelogram. definition of parallelogram what is the missing statement in this proof? what is the missing statement in this proof?