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# A1 1 linear fxns

## on Aug 22, 2011

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## A1 1 linear fxnsPresentation Transcript

• Linear Functions
Algebra 1
• Linear Functions
• A linear function makes a line on a graph.
• Linear Functions
• A linear function makes a line on a graph.
• A solution to a linear function is a point on the line.
• Example 1
• Graphing
• The graph of a function is the set of ALL the points (x, y) that satisfy the equation.
• Graphing
• The graph of a function is the set of ALL the points (x, y) that satisfy the equation.
• For a linear function, all these points together create a line.
• Graphing
• One way to graph a linear function is to create a table of values.
• Graphing
• One way to graph a linear function is to create a table of values.
Solve the equation for y.
• Graphing
• One way to graph a linear function is to create a table of values.
Solve the equation for y.
Choose a few x-values to plug in and find the corresponding y-values.
• Graphing
• One way to graph a linear function is to create a table of values.
Solve the equation for y.
Choose a few x-values to plug in and find the corresponding y-values.
Plot these points.
• Graphing
• One way to graph a linear function is to create a table of values.
Solve the equation for y.
Choose a few x-values to plug in and find the corresponding y-values.
Plot these points.
Connect with a straight line.
• Example 3