The inequality \( y < 3 \) represents all values of \( y \) that are less than 3. To graph this inequality:
- You would place an open circle on the number 3 to indicate that 3 is not included in the solution.
- You would then shade everything below (or to the left of) the line \( y = 3 \) to represent all values less than 3.
Therefore, the correct graphical representation of the solution \( y < 3 \) is:
an open circle on 3 shading everything to the left of 3.