Line Graphs

Graphs and Their Uses

Graphs are used to display data in a visual way.

​https://youtu.be/mfNu8yrMPA8

Graphs should always include

• A Title

• Labels for the axes and categories

• A scale - intervals

Bar graphs compare different categories.

You can find the total of all the data by adding the amounts for each color.

Fill in the Blanks

How many total students answered this question?

Multiple Choice

Since we know that 16 students answered the question, what fraction of the students chose red?

• 4/16

• 1/8

• 3/8

• 4/12

Pie or Circle Graphs show parts of a whole

• Parts may be labeled as a fraction or percent.

• All the parts should add up to 1 whole or 100%

20 people were surveyed

• How many people prefer pepperoni?

• How do you know?

• Can you figure out the total for the other toppings?

Multiple Choice

The largest part of the household budget is spent on

• housing

• car

• food

• savings

Fill in the Blanks

If 40 people answered this survey, how many people chose cheese pizza?

Multiple Choice

Which type of graph is this?

• Histogram

• Bar Graph

• Stem Plot

• Box Plot

Multiple Choice

What type of graph is this?

• Bar Graph

• Histogram

• Dot Plot

• Pie Graph

Multiple Choice

What type of graph is this?

• Bar Graph
• Dot Plot
• Histogram
• Line Graph

Use a line graph to show changes over time.

• The time frame can be seconds up to years.

• Plot the data points and connect with straight lines.

• Did sales increase or decrease from February to March?

Multiple Choice

Line graphs are good for showing

• increases

• decreases

• changes over time

Multiple Choice

Which population is decreasing over the years shown?

• whales

• dolphins

• bears

Multiple Choice

In which year was the bear and whale population the same?

• 2017

• 2018

• 2019

• 2020

Multiple Choice

What would be the best graph to display students' favorite genre of book?

• bar graph

• pie graph

• line graph

Multiple Choice

What would be the best graph to show the average cost of a home from 2000 to 2010?

• bar graph

• pie graph

• line graph

Multiple Choice

What would be the best graph to show the percent of people who scored an A, B, C, or D on the test?

• bar graph

• pie graph

• line graph