Black ice is an ie covering on roads that is especially difficult to see. it is therefore extremely dangerous for drivers. if a car travelling 30 mph brakes suddenly on black ice, it will slide across the ice. the distance d (in feet) that the car will slide is related to the temperature t (in degrees celsius). for example, the car will slide a distance of 168 feet when the temperature is -3 degrees celsius, and the sliding distance increases 4 feet for every 1 degree decrease in temperature. write a linear equation for the sliding distance d in terms of the temperature t.