The function below models the correlation between the number of hours a plant is kept in sunlight (x) And a height(y), in mm, to which it grows: y=4+2x what does the Y intercept of the function represent? The original height of the plant was forMM. The original height of the plant was toMM. The height of the plant increases by twoMM every hour of sunlight received. The height of the plant increases by forhim and for every hour of sunlight it receives.