Di antara himpunan berurutan di bawah ini, manakah yang merupakan fungsi ? tentukan domain dan range nya !
a. { (1,3), (2,4), (3,5), (4,6), (5,7) }
b. { (1,2), (2,3), (3,4), (5,6), (6,7) }
c. { (1,1), (2,3), (3,9), (4,16), (1,6) }
d. { (1,1), (1,2), (1,3), (1,4), (1,5), (5, 25) }
e. { (4,2) (1,1), (9,3), (4, -2), (5,10) }
Range = 3, 4, 5, 6, 7
b) Domain = 1, 2, 3, 5, 6
Range = 2, 3, 4, 6, 7
c) Domain = 1, 2, 3, 4
Range = 1, 3, 6, 9, 16
d) Domain = 1, 5
Range = 1, 2, 3, 4, 5, 25
e) Domain = 1, 4, 5, 9
Range = -2, 1, 2, 3, 10