Determine whether the lines through each pair of points are parallel, perpendicular, or neither. Line 1: (7, 6), (3, 18)
Line 2: (-2, -7), (-4, -1)

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?