which of the following tables represent exponential functions? indicate the growth or decay factor for the data that is a. x- 0 1 2 3 4 y- 0 2 16 54 128b. x- 0 1 2 3 4 y- 1 4 16 64 256c x- 1 2 3 4 5 y- 1750 858 420 206 101

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?