Tell whether the relation is a function. Explain your answer.

Question

(-6,-3), (-4,-2), (-2,0), (2,0), (4,-2), (6,-3).

Answer 1

In a function, for any given value of x, there can be only one value of y
since all the values of x are different, the points given do form a function.

had there been another point such as (2,3)
for the given value of x=2 there would have been 2 different values of y, namely 0 and 3
thus it would NOT be a function.

BTW, as to my reply to you from a previous post, why don't you just substitute the given values in your inequation, if it works ... ?

Answer 2

Thanks for the reply =)

And about the previous post, I did substitute it and from what I got it is the solution for the ineaqulity...