To determine which equation describes the function shown in the mapping diagram, you would typically analyze the relationship between the inputs (x or y) and outputs (f(x) or f(y)) indicated in the diagram.
Given the options:
- \( f(x) = 12x - 8 \)
- \( f(y) = 8x - 12 \)
- \( f(y) = 12x - 8 \)
- \( f(x) = 8x - 12 \)
If you can provide more details about the mapping diagram, such as specific points or patterns in the input-output relationships, I could help you match the correct equation.