Here are the responses for the statements provided:
- As the x values increase, the y-values increase - True
- This is a proportional relationship - False
- The weight and fuel efficiency show a strong, negative correlation - True
- The line of best fit does not have to hit any of the data points, would have a negative m and a positive b - True
- The y-intercept for the line of best fit would be around (0, 2400) - True
Please ensure to adjust any statements based on additional context or specific data you might have regarding the relationship being analyzed.