Question

5. Answer the questions based on the graph provided, zero(2,5) (7,8]a. During which interval(s) was the car stopped?Dx-valuesb. During which interval was this personaltraveling at the fastest speed? Explain yourreasoningDistance from home (km)20246810 12Time (minutes)C. Suppose the graph was modified so that the y-axis was relabeled to representSPEED. What would change about section B-C?

Answer 1

b) You have a graph of x (distance) vs t (time). In this kind of plots the slope of the function represents the speed. In this case the slope of the function is the speed of the person. You can notice that for the interval (0,2) the slope is higher incomparison with other intervals.

Hence, in the interval (0,2) for x, the person travels at the fastest speed.

c)