To solve the inequality \( 9y < 36 \), you should use the operation of dividing both sides of the inequality by 9.
So the correct operation is: Divide by 9 on both sides of the inequality.
After dividing, the inequality simplifies to: \[ y < 4 \]
For the second part of your question regarding the graph that shows the solution to \( 9y < 36 \) (which is \( y < 4 \)): You would look for a graph that represents all values of \( y \) that are less than 4. This is typically shown as a number line with an open circle at 4 (indicating that 4 is not included in the solution) and shading to the left towards negative infinity.
If you provide the graph options, I can help you identify which one represents \( y < 4 \).