7.2 Notes - Perpendicular Lines

# 7.2 Notes - Perpendicular Lines - Perpendicular Lines...

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Perpendicular lines cross at right angles. The slopes of perpendicular lines are negative reciprocals. Negative opposite signs Reciprocal multiplicative inverse flipped Perpendicular Lines
The negative reciprocal of The negative reciprocal of The negative reciprocal of Neg it and flip it 2 3 is 3 2 1 is 3 3 1 5 is 5

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What is the slope of a line perpendicular to a line with a slope of 2? The negative reciprocal of 2 is The slope of the perpendicular would be Common Questions 1 2 1 2
What is the slope of a line perpendicular to the line - 12x + 2y = 17? We first have to put this equation in slope-intercept form. 2y = 12x + 17 y = 6x + we don’t care The negative reciprocal of 6 is The slope of the perpendicular would be Common Questions 1 6 1 6

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What is the equation of a line perpendicular to the line and passing through the point (4, 3)? That’s the same as asking “What is the equation of a line with a slope of 2 passing through the point (4, 3)?”

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