Warm-up List each of the following:  Slope Formula  Slope-intercept form  Point-slope form  Standard form.

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Presentation transcript:

Warm-up List each of the following:  Slope Formula  Slope-intercept form  Point-slope form  Standard form

2.4 Writing Linear Equations Algebra 2 honors

Example 1: Slope-Intercept Form Write an equation in slope-intercept form for the following lines: a. b.  c. slope: -2, passes through (0,-3) Passes through (1,2) and (-3,6)

Example 2: Write an equation using point-slope form Write an equation of the following lines in slope-intercept form. a.Passes through (5,-2) with a slope of -3/5 b.Passes through (2,3) with a slope of 1/2

Example 3: Write an Equation Given Two Points Write an equation of the following lines in slope-intercept form.  Passes through (2,-3) and (-3,7)  Passes through (-1, 1) and (4, 3)

Parallel and Perpendicular Lines Two lines are parallel if they have the same slope Two lines are perpendicular if the product of their slopes is -1 ~ their slopes are opposite reciprocals

Example 4: Write an Equation of Parallel or Perpendicular Lines  Write an equation in slope-intercept form for the line that passes through (5, -6) and is perpendicular to  Write an equation in slope-intercept form for the line that passes through (3,7) and is parallel to