Answer:
The answer is:
{(2,2),(4,4),(6,6),(8,8)} is a function
{(0,3),(3,5),(5,6),(8,4)} is a function
{(1,2),(3,3),(4,8),(6,3)} is a function
{(3,4),(5,2),(5,6),(7,3)} is not a function
Step-by-step explanation:
Sorry I don't have an explanation, but I know these are correct because I took the test and got this correct. ;)
1 function {(2,2),(4,4),(6,6),(8,8)} written is a function the other following coordinates are not functions due to it not being a straight line as a 'proper' function should be.
i think its b but im not sure
x ≥ - 1