a bar graph a line graph a pie chart a pictograph
I gave my students this multiple choice question: A student investigates how speed changes as a ball travels down a ramp. Measurements taken by computer every second are recorded on a data table. Which diagram will best display the data from this table?

Only one answer is correct among these 4 choices:
- a bar graph
- a line graph
- a pie chart
- a pictograph

Could you tell me which one is correct?

a line graph