In this function, y is the dependent variable and x is the independent variable. Variable used in an experiment or modelling can be divided into three types:  dependent variable ,  independent variable , or other.
About 70% of men have an eye dominance that matches their handedness. BUT, 30% do not. Most right handers have a dominant right eye and the bulk of southpaws a dominant left. These are the people who are well advised to shoot both eyes open (assuming that they are shooting from their strong shoulder).
If your dominant characteristic is Light it means your hair and eyes are light. You have the lightest and most delicate coloring in the seasonal color analysis. Eyes: Light to medium blue or green. You may also have light hazel to pale brown eyes.