Respuesta :

2x + 3y = 10 -> y = -2/3x + 10/3 it's a function

4x = 16 -> x =4 it's not a function

2x - 3 = 14 -> x = 8.5 it's not a function

3y = 18 -> y = 6 it's a function

2x = 6 -> x = 3 it's not a function

Answer:

2x + 3y = 10,  3y = 18  (in both cases, for each input x, there is exactly one output y.)

Step-by-step explanation: