Question

Sharon wants to make a graph to show the relationship between the number of tickets sold and the price of tickets sold. She plots the following points: (0, 0), (1, 20), (2, 40), (3, 60), (4, 80) She uses the following steps to plot the graph: Label origin as (0, 0). On x-axis, label Number of tickets sold. On y-axis, label Price of tickets in dollars. The scale on x-axis starts from 0 and goes up to 10 at intervals of 2. The scale on the y-axis starts from 0 and goes up to 200 at intervals of 20. Which of the following best describes the graph? It will not be spread out across the entire coordinate plane because in Step 1, Sharon selected an incorrect point as the origin. It will not be spread out across the entire coordinate plane because in Step 2, Sharon plotted the dependent variable on the x-axis. It will not be spread out across the entire coordinate plane because in Step 3, Sharon plotted the independent variable on the y-axis. It will not be spread out across the entire coordinate plane because in Step 4 and Step 5, Sharon selected incorrect scales on the axes.

Answer 1

The statement that best describes the graph is “It will not be spread out across the entire coordinate plane because in Step 3 Sharon plotted the independent variable on the y-axis.”

 

To add, graphing is a powerful tool for representing and interpreting numerical data. In addition, graphs and knowledge of algebra can be used to find the relationship between variables plotted on a scatter chart.