The function f(x) = -x is shown on the graph. Which statement is correct?
6 5
. 3 2
O The domain of the function is all real numbers less
than or equal to -1.
O The range of the function is all real numbers greater
than or equal to 0.
The range of the function is all real numbers less thar
or equal to 0.
O The domain of the function is all real numbers less
than or equal to 0.
1
-7 -6 -5 -4 -3 -2 -11
2 3
4
5 6 7 X
-2
-3
-4
-5
-6

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?