Question

How do you find the domain and range and is it a function given points `{(2,-3), (9,0), (8m-3), (-9,8)}`?

Answer 1

As explained below

Explanation:

Domain is a set of points {2,9,8m,-9}
Range is a set of points {-3,0,-3,8}

Yes it is a function because none of the points in the domain has more than one image.