Which of the following relations are functions ?

Question

F= {(1,2) (2,3) (3,5) (4,7)}

G= {(1,3) (1,4) (2,5) (2,6) (3,7)}

H= {(1,3) (2,6) (3,9), ..., (n, 3n), ... }

Thanks you!

Answer 1

The relations F and H are functions because no two ordered pairs have the same x- value but different y- values. Meanwhile, G is not a function because (1,3) and (1,4) are ordered pairs with the same x- value but different y- values.

Answer 2

F= {(1,2) (2,3) (3,5) (4,7)}

and

H= {(1,3) (2,6) (3,9), ..., (n, 3n), ...}

Answer 3

So ... you answered yourself twice. Do you want a Jiskha math tutor to check your work?

Answer 4

Jessica is correct.

Answer 5

Which of the following relations is not a function?

a
F. {(3, 5), (7, 9), (4, 5), (2, 8)}
b
G. {(0, 1), (2, 5), (3, 6), (2, 7)}
c
H. {(1, 4), (0, 6), (4, 8), (3, 5)}
d
J. {(6, 8), (2, 3), (5, 7), (1, 9)}