Graphing Basics. Why do we graph? Visual representation of data “Short hand” for presenting large amounts of information at once Easier to visualize trends.

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Presentation transcript:

Graphing Basics

Why do we graph? Visual representation of data “Short hand” for presenting large amounts of information at once Easier to visualize trends than by just using numbers or figures More organized way of showing information

What is this? Height (cm) of Jr. High Students by Grade 7th8th9th Type: Data Chart Purpose: To organize data collected

What is this? Type: Bar Graph Purpose: To show a side-by-side comparison of data. X axis is usually used to plot independent variable Y axis is usually used to plot dependent variable

What is this? Type: Line Graph Purpose: To show a change over time or distance. X axis is used to plot independent variable (time, distance, etc.) Y axis plots the dependent variable

What is this? Type: Pie Chart Purpose: To show parts of a whole (percentages)

Parts of a Graph

Graph Title Y Axis Label - Include units X Axis Label Legend

Graph Title Y Axis Label Legend X Axis Label

Data Label Graph Title