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3.7 Perpendicular Lines Perpendicular slopes and equations
Perpendicular Slopes Slope of perpendicular lines have opposite reciprocal slopes. If m 1 = -2, then it opposite reciprocal would be ½. y = - 2x + 3 and y = ½x – 3 would be perpendicular lines
Are the lines Perpendicular?
Are these lines perpendicular?
-2x + 7y = - 4 7x + 2y = 10
Write the equation perpendicular to the line y = 3x – 2 and through the point (3, 4)
The equation represents a mirror. A ray of light hits the mirror at (3, 1). What is the equation of the line that is perpendicular to the mirror at this point?
What are 6 ways to prove lines parallel?
Homework Page 175 – 178 #8 – 50 even
3.7 Perpendicular Lines in the Coordinate Plane 1 GOAL
3.8 Slopes of Parallel and Perpendicular Lines
Parallel and Perpendicular Lines
Parallel and Perpendicular Lines Objectives: Define parallel lines. Find equations of parallel lines. Define perpendicular lines Find equations of perpendicular.
Perpendicular Lines. ┴ Perpendicular lines are lines that intersect in a right angle. ┴ The slopes of perpendicular lines are negative reciprocals of.
Parallel & Perpendicular Lines Parallel Lines m = 2/1 What is the slope of the 2 nd line?
Objective - To write equations of parallel and perpendicular lines. Graph the following on the coordinate plane. x y Parallel lines have the same slope.
5.6 Parallel and Perpendicular Lines
Parallel Lines **Parallel lines have the same slopes. What is the slope of the line parallel to y = -2x + 4? m = -2.
Warm-Up On the same coordinate plane… ▫Graph the equation y=2x +3 ▫Graph the equation y=2x ▫Graph the equation y= - ½x + 1 What do you notice about the.
5.7 Parallel and Perpendicular Lines
Writing equations of parallel and perpendicular lines.
y x y=x-2 y=x+2 Slopes are the same y x y=2x-4 y=2x+1 Slopes are the same.
Parallel & Perpendicular Lines Parallel Lines – have the SAME slope Perpendicular Lines – have RECIPROCAL and OPPOSITE sign slopes.
Objective - To write equations of parallel and perpendicular lines.
Determining if Lines are Parallel or Perpendicular Parallel linesPerpendicular lines Slopes are the same Slopes are opposite reciprocals (assume no vertical.
Finding Equation of Lines Parallel and Perpendicular to Given Lines Parallel linesPerpendicular lines Slopes are the same Slopes are opposite reciprocals.
8-7: Parallel and Perpendicular Lines Mr. Gallo. Parallel Lines If two non-vertical lines have the _________ ________, then the lines are ___________.
Writing & Identifying Equations of Parallel & Perpendicular Lines Day 94 Learning Target: Students can prove the slope criteria for parallel and perpendicular.
3.6 Finding the Equation of a Line
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