Answer:
D = {5, 6, 7 , 8}
R = {-3, -2, 0, 10}
Yes, this could be a function
Step-by-step explanation:
It's not too difficult to understand these types of questions but you have to understand the fundas first
Let's see what some of those terms mean
Domain
- is the range of input values a function takes. In this case we are not told it is a function but only a relation between x and y
x is input, y is output
so domain is all possible values of x from the table
D = {5, 6, 7, 8}
which is all the values of x in the table
This is notated in ascending order so still
D = {5, 6, 7, 8}
Range
Range is set of all possible values for output - in this case y values are the output values so the range is
R = { 0, - 2 10, -3} which is all the value of y in the table
This is usually notated in ascending order which means
R = {-3, -2, 0, 10}
Is this a function?
A little more complex.
A relation is a function if for every output value there is only one input value
In other words if you pick a value for y, there should only be one x value
In this case, the relation is a function because for each y there is only one x value
If you still have clarifications send a comment
Not to panic. Everything will go alright
