Question

1) Find the domain and range of this relation. Is it a function?
{(0,0),(1,1),(2,4),(3,9),(4,-6)}

Answer 1

you have a set of (x,y) pairs
domain: the set of x values
range: the set of y-values
it's a function if no x-value is repeated

better review the topic.

Answer 2

Thank you!