Is (2,3) (4,5) (2,8) a function?

No

Step-by-step explanation:

if the X number ever repeats, then its never a function

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !