To solve the inequality \( 20 > 5y \), we first isolate \( y \):
- Divide both sides by 5: \[ \frac{20}{5} > y \] \[ 4 > y \] or equivalently, \[ y < 4 \]
The solution to the inequality is \( y < 4 \).
Graphing the Solution
- Identify the endpoint: The endpoint is \( y = 4 \).
- Select an endpoint to change it from closed to open: Since we are dealing with \( y < 4 \), we will make the endpoint at \( y = 4 \) an open circle (indicating that 4 is not included in the solution).
- Graph the inequality:
- Draw a number line.
- Place an open circle at \( 4 \) (this indicates that \( 4 \) is not included).
- Shade the region to the left of \( 4 \) to indicate all values less than \( 4 \).
Summary of the Graph
- Open circle at \( 4 \)
- Shaded line extending left from \( 4 \)
This completes the solution and the graph of the inequality \( y < 4 \).