1. a. Match each diagram with a description and an equation.
А
B
у
Descriptions:
Equations:
An increase by
y = 1.83x
y = 1.6x
An increase by
A decrease by }
A decrease by
y = 0.6x
y = 0.4x

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem