The scatter diagram below shows the record times for races of different lengths at a junior high school track meet, where x is the length of the race in meters and y is the time of race in seconds. Suppose the school adds a 500-meter race. How will that change the scatter plot? Will the graph have the same number of points or an additional point?
A) The point will be graphed with an x-coordinate of 500 and a y-coordinate equal to the record time for the 500-meter race. The graph will not have an additional point.
B) The point will be graphed with an x-coordinate of 500 and a y-coordinate equal to the record time for the 500-meter race. The graph will have an additional point.
C) The point will be graphed with an x-coordinate equal to the record time for the 500-meter race and a y-coordinate of 500. The graph will have an additional point.
D) The point will be graphed with an x-coordinate equal to the record time for the 500-meter race and a y-coordinate of 500. The graph will not have an additional point.
E) The point will be graphed with an x-coordinate of 500 and a y-coordinate of 500. The graph will not have an additional point.

Question

The scatter diagram below shows the record times for races of different lengths at a junior high school track meet, where x is the length of the race in meters and y is the time of race in seconds. Suppose the school adds a 500-meter race. How will that change the scatter plot? Will the graph have the same number of points or an additional point? 
A) The point will be graphed with an x-coordinate of 500 and a y-coordinate equal to the record time for the 500-meter race. The graph will not have an additional point. 
B) The point will be graphed with an x-coordinate of 500 and a y-coordinate equal to the record time for the 500-meter race. The graph will have an additional point. 
C) The point will be graphed with an x-coordinate equal to the record time for the 500-meter race and a y-coordinate of 500. The graph will have an additional point. 
D) The point will be graphed with an x-coordinate equal to the record time for the 500-meter race and a y-coordinate of 500. The graph will not have an additional point. 
E) The point will be graphed with an x-coordinate of 500 and a y-coordinate of 500. The graph will not have an additional point.

Quizplus · Accepted Answer

The point will be graphed with an x-coordinate of 500 and a y-coordinate equal to the record time for the 500-meter race. Since the school is adding a new race, the scatter plot will have an additional point.

The Scatter Diagram Below Shows the Record Times for Races