Answer to Question 9
Doman ={ 0, 5, 1, -8 }
Range = {3, 5 -4, 4, 2 }
It is not a function.
Step - by - Step Explanation
What to find?
• Domain
,
• Range
Given:
{ (0, 3), (5, 5), (1, -4), (-8, 4), (5, 2) }
The domain of a function (x, y) is the x - value and its range is the y - value.
If a set has one x - value mapped to more than one different y- value, then it is a relation otherwise it is a function.
From the given set, the domain are { 0, 5, 1, -8 }
The range are {3, 5 -4, 4, 2 }
Observe that in the given set, one x - value are mapped to two different y- values i. e The range are {5, 5} and { 5, 2}.
Therefore, it is not a function.