Check here for instructional material to complete this problem. a. Is the car traveling at a constant speed? A person is on a car trip. Let d be the distance (in miles) traveled in t hours of driving. The line in the figure describes the relationship between t and d. No a. Is the car traveling at a constant speed? Yes b. What is the speed of the car? dA b. What is the speed of the car? 300- The speed of the car is mph. 240- (Type a whole number.) 180- Miles 120- 60 2 W - 4 t Hours