Final answer:
The relationship between the lines is that Line 1 has a positive slope, while Line 2 has a negative slope.
Step-by-step explanation:
In order to determine the relationship between two lines, we need to compare their slopes. If Line 1 has a positive slope and Line 2 has a negative slope, then they have different slopes and cannot be parallel or perpendicular to each other. Therefore, option c) Line 1 has a positive slope, while Line 2 has a negative slope is the correct answer.