Question

Which of the following is an example of a function?Answer

{(-1, 0), (-1, 3), (3, 9), (5, 10)}

{(1, 3), (2, 5), (3, 8), (4, 10)}

{(4, 6), (5, 9), (4, 7)}

{(0, 2), (0, 3), (1, 5), (4, 5)}

Answer 1

@ghazi

Answer 2

@jennychan12

Answer 3

i will tell u this much: a function can have the same y values, but not the same x values.
u figure out the rest?

Answer 4

B is a function..

Answer 5

Just remember that a function means that for a given X value, there is exactly one Y value. So, examining the sets, I see that only the second set has a unique Y value for each X value. Every other set has some items where there's an X value that is shown with two different Y values.

Hope that was helpful!

Answer 6

@jennychan12 Option b is consider a Function if not D

Answer 7

@Spectrum

Answer 8

@ramirokool yep, it's b