Question

which lines form the baselines of a line graph?
horizontal line (x) and vertical line (y)
curved lines
diagonal lines
dotted lines

why do charts and graphs use a scale when representing large numbers?
to make the data more difficult to interpret
to exaggerate the differences between values
to save space and make the information more readable
to make the graphs visually appealing

what is the primary purpose of a pie chart?
to represent quantities in a time series
to show the distribution of values in a dataset
to represent percentages of data in a circle graph
to display relationships between two variables

Explanation:

Identify baselines of a line graph

A standard line graph is constructed on a two-dimensional coordinate system defined by a horizontal axis (\(x\)-axis) and a vertical axis (\(y\)-axis).

Determine the purpose of scales

Using a scale allows large numerical values to be represented compactly, preventing graphs from becoming excessively large while ensuring the data remains clear and readable.

Determine the purpose of a pie chart

A pie chart (or circle graph) is specifically designed to show how a whole is divided into parts, representing percentages of data that sum to 100%.

Answer:

Question 1

• (A) Horizontal line (x) and vertical line (y) (Correct answer)
• (B) Curved lines
• (C) Diagonal lines
• (D) Dotted lines

Question 2

• (A) To make the data more difficult to interpret
• (B) To exaggerate the differences between values
• (C) To save space and make the information more readable (Correct answer)
• (D) To make the graphs visually appealing

Question 3

• (A) To represent quantities in a time series
• (B) To show the distribution of values in a dataset
• (C) To represent percentages of data in a circle graph (Correct answer)
• (D) To display relationships between two variables