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Linear Equations

Page history last edited by Andrea Grieser 13 years, 8 months ago

Linear equations are first degree polynomials.  These functions describe lines.  They can take several different forms:

  • standard form, ax + by = c, where a, b, and c are integers, 
  • the slope intercept form, y = mx + b, where m is the slope of the line and b is the y-intercept, and
  • point-slope form, (y - y1) = m(x - x1), where m is the slope, and x1, y1 represent the coordinates of a point on the line. 

 Often we need to manipulate algebraically to put the equation of the line into its various forms.

 

We can graph linear equations by:

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