My question: if the two regression lines are
different in both slope and intercept, is there a way to evaluate
X dataset has more influence on
Based on the image below, this is to say - which Y dataset is more influenced by the X dataset?
- 藍色斜率（Y1）： - 112
- 紅坡（Y2）： - 90
It is visible that an increase in X produces a decrease in both Y1 and Y2. My question could be interpreted as follows: which Y dataset decreases the most, given the increase in X? Is the slope everything I need?