Question

Do the pairs of numbers correspond to a function? (2,3), (2,4), (3,5), (4,6), (5,7)

Answer 1

A function cannot have 2 or more x values the same. They can have 2 or more y values the same, just not the x ones.
So look at all your points....they are all in (x,y) form. Are there any 2 x values the same ?
If there IS, then it is not a function. If there IS NOT, then it is a function.

Answer 2

so what do you think ?

Answer 3

ok, thank you

Answer 4

your quite welcome :)