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Galore!!!!. . Given a Bunch of Random Information About a Line. Created by Matt Cohen. m is slope b is y- intercept. Slope. y -intercept. Identify the Slope and y -intercept. m = -1, b = 2. m = 0, b = 2. m = 4, b = 0. m = 1, b = -7. m = 2/3, b = -1/5.
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Galore!!!! Given a Bunch of Random Information About a Line Created by Matt Cohen
m is slope • b is y-intercept Slope y-intercept
Identify the Slope and y-intercept m = -1, b = 2 m = 0, b = 2 m = 4, b = 0 m = 1, b = -7 m = 2/3, b = -1/5 m = -2, b = 3
Writing Equations in Slope-Intercept Formy = mx + b • Write the equation of the line that has a slope of –3 and y-intercept 4.
You Try a Couple! • Write the equation of the line that has a slope of 1 and y-intercept –2. • Write the equation of the line that has a slope of 0 and y-intercept 11.
Writing Equations in Slope-Intercept Formy = mx + b • that has a slope of 2 and passes through the point (3, 1).
You Try a Couple! • Write the equation of the line that has a slope of -1 and passes through (4, 3). • Write the equation of the line that has a slope of 0 and passes through (-2, 5).
Writing Equations in Slope-Intercept Formy = mx + b • that passes through (-1, 2) and (1, -6). • Find slope using • Take slope and 1 point (x, y) & plug in.
You Try a Couple! • Write the equation of the line that passes through (1,1) and (7, 4). • Write the equation of the line that passes through (-3,4) and (0,-6).
Writing Equations in Slope-Intercept Formy = mx + b • that is parallel to y = 3x – 2 and passes through (-6, 0). • Recall: Parallel lines have the “same” slope with different y-intercepts.
You Try a Couple! • Write the equation of the line that is parallel to y = x + 4 passes through (1,-2). • Write the equation of the line that is parallel to y = -2x – 1 passes through (3,1).
Writing Equations in Slope-Intercept Formy = mx + b • that is perpendicular to y = 3x – 2 and passes through (-6, 0). • Recall: Perpendicular lines have “opposite-reciprocal” slopes.
You Try a Couple! • Write the equation of the line that is perpendicular to y = x + 4 passes through (1,-2). • Write the equation of the line that is perpendicular to y = -2x – 1 passes through (3,1).
Tonight’s HW • Section 2.4 #14-28 Even