You need to find his miles per hour (mph) from the information given, which tells you how many miles in how many hours Travis drove. 330miles/6hours=xMiles/1hour. To find x, just simplify the fraction on the left (330/6)
She is starting at 4000, so that is the y-intercept of the graph. She is descending at 40 feet per minute, so her rate of change or slope is -40. The graph would look like this:
