# Introduction to graphs

Contents

Graphs are a graphical depiction of data, or relation between two or more variables. In this chapter we will learn about linear graphs, coordinates, and some applications. We will see that data becomes very easy to understand and interpret when depicted through graphs!

See how you score on these 20 practice questions

Read and interpret picture graphs, bar graphs and histograms. Also, make some graphs of your own!

A series of points, discrete or continuous, forming a curve or surface, each of which represents a value of a variable make up a linear graph. It can also be called a network of lines connecting points. In this topic we will learn how to read a line graph.

How can we communicate exactly where something is in two dimensions? In this tutorial, we cover the basics of the coordinate plane and graphing points.

Represent real world problems by graphing points in the first quadrant of the coordinate plane, and interpret coordinate values of points in the context of the situation.

Sometimes one variable depends on another. For example, the amount of money you make might depend on how many hours you work.

In this topic we will learn about visualization of sequence relationships, interpreting & graphing relationships, interpreting relationships betweens patterns on a graph, and we will do some exercises which will help us understand the use of graphs a little better!