Question

What is the domain and range of {(3,7),(3,8),(3,-2),(3,4),(3,1)}?

Answer 1

Domain: `x = 3`
Range: `y in {7, 8, -2, 4, 1}`

Explanation:

Assuming the given set represents values of `(x,y)` where `x` is being mapped into `y`.

`color(white)("XXXX")`The domain is the set of all valid values for `x`.

`color(white)("XXXX")`The range is the set of all valid values for `y`

Note: This explicit set mapping is not a function (since the same value of `x` maps into multiple values of `y`)