Final answer:
The values of x and y cannot be determined with the information provided. Parallel lines have the same slope, and from the equation y = 9 + 3x, the slope is 3. More details are needed to find specific values for x and y.
Step-by-step explanation:
The problem as stated appears to be incomplete, with parts of the expression not fully relevant to finding the values of x and y given that lines l and m are parallel. However, based on the information provided, we can say that parallel lines have the same slope. With the equation y = 9 + 3x, we know that the slope, or m term, is 3. To determine the specific values of x and y, we would need more information about one of the lines, such as a point through which it passes.
Given equations of lines such as Line Y2 = -173.5 + 4.83x − 2(16.4), and Line Y3 = -173.5 + 4.83x + 2(16.4), we see that they share the same slope, indicating that they are indeed parallel. We could use this knowledge to find points or particular values if more context was provided.