Select ALL the correct answers.
Consider the line shown on the graph. Select all pairs of triangles that could be used to show the slope of the line is the same between any two points on the line.
triangle 1 and triangle 3
triangle 2 and triangle 4
triangle 4 and triangle 5
triangle 3 and triangle 4
triangle 1 and triangle 5
triangle 2 and triangle 5

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?