An Internet company charges $30 a month. There is also a $30 installation fee. Is the number of months you can have Internet proportional to the total cost? Explain.
Damon runs 8 meters in 1 second, 16 meters in 2 seconds, 24 meters in 3 seconds, and 32 meters in 4 seconds. Determine whether Damon’s distance is proportional to the number of seconds he runs by graphing on the coordinate grid at the right. Explain your reasoning.