Answer:
Question 1:
(3)
x 3 5 7 9
f(x) 2 4 2 4
Question 2:
(2) whole numbers
Step-by-step explanation:
1.
In a function, each x-value must only have 1 y-value, but a y-value can have multiple x-values.
2.
A whole number is any positive number that is not a fraction. You cannot have negative devices nor a fraction of a device.
