Megan wants to predict how much gas is left in her tank based on the distance she has driven. She filled up her tank and measured the amount of gas in her tank (in liters) after driving certain distances (in kilometers). Her data is summarized in the table below.
Distance (km) 000 100100100 200200200 300300300 400400400 500500500
Gas left (L) 50.050.050, point, 0 42.242.242, point, 2 34.234.234, point, 2 26.026.026, point, 0 17.617.617, point, 6 9.19.19, point, 1