The intensity of light, in lumens, passing through a certain filter is modeled by the function , where is the thickness of the filter in millimeters. Which of the following statements best describes the meaning of the number 10 in this model?
The initial intensity of the light is 10 lumens.
The intensity of the light decreases by 10% for every millimeter of filter thickness.
The intensity of the light is reduced to 80% of its current value every 10 millimeters of filter thickness.
The filter can block a maximum of 10% of the light.
