Question

which type of graph is best suited for graphing the cost of a computer versus its speed?
a. pie graph
b. stem - and - leaf plot
c. line graph
d. histogram

Explanation:

To determine the best graph for plotting computer cost versus its speed, we analyze each option:

• A pie graph (A) is used to show proportions of a whole, not relationships between two variables.
• A stem - and - leaf plot (B) is for displaying the distribution of a single data set, not for showing the relationship between two variables.
• A line graph (C) is ideal for showing the relationship between two continuous variables (cost and speed here), as it can illustrate how one variable changes with respect to the other.
• A histogram (D) is used to show the frequency distribution of a single variable, not for showing the relationship between two variables.

Answer:

C. line graph