Students compete in a short race at a track meet. Which of the following observations is a qualitative change that occurred during the race? * The distance ran by a student in meters
the time passed from start to finish in seconds
the heart rate of a students in beats per second
the colors of the students' faces as they ran

Where are the options ?

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.