The function below models the correlation between the number of hours a plant is kept in sunlight (x) and the height (y), in mm,
to which it grows: y = 2 + 4x What does the y0intercept of this function represent? The original height of the plant was 4 mm. The original height of the plant was 2 mm. The height of the plant increases by 2 mm for every hour of sunlight it receives. The height of the plant increases by 4 mm for every hour of sunlight it receives.
