Practice problem
Which of the following sets of ordered pairs does not represent a function?
{(3,5),(4,6),(5,7),(6,8)}\{(3,5), (4,6), (5,7), (6,8)\}{(3,5),(4,6),(5,7),(6,8)}
{(5,3),(6,4),(7,5),(8,6)}\{(5,3), (6,4), (7,5), (8,6)\}{(5,3),(6,4),(7,5),(8,6)}
{(10,9),(8,7),(6,5),(5,4)}\{(10,9), (8,7), (6,5), (5,4)\}{(10,9),(8,7),(6,5),(5,4)}
{(3,5),(3,4),(4,3),(5,3)}\{(3,5), (3,4), (4,3), (5,3)\}{(3,5),(3,4),(4,3),(5,3)}
Type a concept, like “slope” or “photosynthesis”.