How can coordinate proof be used to prove two lines are parallel?
The product of their slopes is -1.
The y-intercepts are the same.
The product of their slopes is 1.
The slopes are the same.

Jayda's house is located at (1, 5). she can walk in a straight line to get to cristian's house. a fast-food restaurant is located at (11, 0) and partitions the way from jayda's house to cristian's house by a ratio of 5: 1. find the coordinate of cristian's house. me . im a little stuck

Can any one me with the answers to these questions asap?

What is the missing step in this proof ?