# 1.1 Introduction to Graphing

Plot points.

Determine whether an ordered pair is a solution of an equation.

Find the

`x`- and`y`-intercepts of an equation of the form $Ax+By=C$.Graph equations.

Find the distance between two points in the plane and find the midpoint of a segment.

Find an equation of a circle with a given center and radius, and given an equation of a circle in standard form, find the center and the radius.

Graph equations of circles.

# Graphs

Graphs provide a means of displaying, interpreting, and analyzing data in a visual format. It is not uncommon to open a newspaper or a magazine and encounter graphs. Examples of bar, line, and circle graphs are shown below.

Many real-world situations can be modeled, or described mathematically, ...

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