Graphing Skills

A student investigated to find out if the temperature of a liquid affected the solubility of a dessert gelatin mix. Which of the following BEST explains the relationship shown by the data in the table?

• As the temperature increases, the solubility of the powder increases.

• As the temperature increases, the solubility of the powder decreases.

• As the temperature increases, the solubility of the powder remains constant.

• There is no relationship between the temperature and solubility.

The line graph shows five years of data about a dog. What information does the graph show?

• How the mass of the dog changed.

• How much food the dog consumed.

• What kinds of food the dog consumed.

• When the dog was measured each month.

What is the independent variable in the dog data graph?

• Dog's Mass (kg)

• Year

What does the scale on the left beginning with 0 and ending with 7 represent?

• Number of students selling candy

• Number of cases of candy sold

• Number of candy in each case

• Number of days each month that candy was sold

The amount of candy sold in December is twice the amount of candy sold in which other month?

• October

• March

• January

• September

According to the graph, what percentage of a student's day is spent socializing?

• 8%

• 13%

• 25%

• 33%

According to the graph, what activity does a student spend a majority of their time doing?

• Eating

• Homework

• Sleeping

• School

What type of graph best shows change of dependent variable over time?

• Circle chart

• Line graph

• Bar graph

• Data table

What type of graph best shows comparison of dependent variable?

• Circle chart

• Line graph

• Bar graph

• Data table

Which axis is the independent variable in an X-Y line graph?

• X-axis

• Y-axis