Answer:
Domain = Planet
Range = number of solar congress reps
Function = YES (many-to-one)
Step-by-step explanation:
Domain : input values ⇒ planet
Range : output value ⇒ number of solar congress reps
Function : A function relates each element of a set with exactly one element of another set (possibly the same set).
One-to-many is not a function.
Many-to-one is a function.
From inspection, we can see that every element in the domain is related to exactly one element in the range. Both Venus and Neptune are related to 18. So this is a many-to-one function.
