Which exponential function has an initial value of 3? y
x
8
-2.
f(x)
-3.938
-3.75
-3
6
-1
1
f(x) = (9)*
f(x) = (3)*
0
2
1
0
x
12
-3-2-1
1 2 3
N
o
Done

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?