Practice Reading Graphs

Front

What is a line graph?

Back

A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments. It is used to visualize trends over time.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the height or length of the bars to compare different categories. The y-axis typically represents the quantity, while the x-axis represents the categories.

Front

What does it mean when two lines on a graph intersect?

Back

When two lines on a graph intersect, it indicates that the two variables are equal at that point, showing a relationship between them.

Front

How can you determine the maximum value in a graph?

Back

The maximum value in a graph can be determined by identifying the highest point on the graph, which corresponds to the highest value on the y-axis.

Front

What is the purpose of a pie chart?

Back

A pie chart is used to represent data in a circular graph, showing the proportions of different categories as slices of the pie.

Front

How do you find the average from a set of data points on a graph?

Back

To find the average, sum all the data points and divide by the number of points. This gives the mean value.

Front

What does a steep slope on a graph indicate?

Back

A steep slope on a graph indicates a rapid change in the value of the variable being measured, suggesting a strong relationship.

Front

How can you tell if a graph is increasing or decreasing?

Back

A graph is increasing if the line moves upward from left to right, and decreasing if it moves downward from left to right.

Front

What is the significance of the x-axis and y-axis in a graph?

Back

The x-axis typically represents the independent variable, while the y-axis represents the dependent variable. Together, they help to plot the relationship between the two.

Front

How do you interpret the data points on a scatter plot?

Back

Data points on a scatter plot show the relationship between two variables. The pattern of the points can indicate correlation, whether positive, negative, or none.