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. box-and-whisker plot
d. line graph

Explanation:

A pie graph (A) shows proportions of a whole, not relationships between two variables. A stem - and - leaf plot (B) and box - and - whisker plot (C) are used for summarizing and visualizing the distribution of a single set of data. A line graph (D) is ideal for showing the relationship between two continuous variables (cost and speed here), as it can display how one variable changes with respect to the other.

Answer:

D. line graph