GraphingGraphing

South Carolina Standards

• PS-1.5Organize and interpret the data from a controlled scientific investigation by using mathematics (including formulas and dimensional analysis) graphs, models, and/or technology.

Communicating With Graphs

• Graphs are used as a visual display of data.

• There are 3 major types of graphs.

Bar Graphs

• Useful in showing information collected by counting.

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Pie Graph• Useful in showing

some fixed quantity broken down into parts or percents.

• Must add up to equal 100%.

Line Graphs

• Useful in showing trends or continuous changes. 0

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How to Construct a Line Graph

• Identify the Variables (DRY MIX)– Dependent Responding Variable

goes on the y-axis (vertical)– Independent Manipulated Variable

goes on the x-axis (horizontal)

• Determine the Variable Range of Numbers

• Determine the Scale of the Graph

• Number and Label Each Axis• Draw the Graph• Title the Graph

Interpolate

• Using data inside your known points to calculate where unknown data would fit.

Changes in Oxygen Levels Over Time

Extrapolate• Predicting

unknown data beyond a set of known points by extending a trend or line pattern.

Total Yearly Home Runs for the Fort Mill Yellow Jackets

1953 - 1969