Question

adam goes for a drive in his car. he travels 20 kilometers in 20 minutes. in the next 30 minutes, he travels 45 kilometers, and in the last 10 minutes, he travels 12 kilometers. adam wants to find out how the speed of the car changed over the 60 minutes of its journey. what is the most accurate way of representing adams data? a pie chart a line graph a flow chart a bar graph

Explanation:

A line graph is ideal for showing changes over time. Here, Adam wants to see how speed (derived from distance - time data) changes over 60 - minute journey. Pie charts are for proportions, flow charts for processes, and bar graphs for comparing discrete values.

Answer:

B. a line graph