Give the domain and range of the relation, and state whether or not it is a function: { (-3,10), (-3, 16), (11, 30)}

Question

Give the domain and range of the relation, and state whether or not it is a function:

{ (-3,10), (-3, 16), (11, 30)}

I am not entirely sure how to do this. Pls help....

Answer 1

Not a function, because more than one output for one input, -3

it fails the vertical line test

domain = -3, and 11

range = the y coordinates = 10, 16, and 30