Answer:
4. Corresponding angles of congruent triangles. ( Angle)
5. Common side. (Side)
6. From 1, 4, and 5. (SAS axiom)
Step-by-step explanation:
Answer:
y=3x
idk
Step-by-step explanation:
I know this is only half an answer, but for a they have the same slope and it's proportional so it has no b value.