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Parallel and Perpendicular
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Write an equation of a perpendicular line passing through a point.
y-13 = -1/5 (x-11)
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Given the line y=-2x+3, what is the y-intercept (starting point)?
3 or (0,3)
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What is the Perpendicular slope of m=3/5
m=-5/3
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What is the perpendicular slope of m = -3
m = 1/3
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Given the line 2x-5y=-14, find the x-intercept.
x=-7
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Write an equation of a parallel line passing through a point.
y-7 = 3(x+4)
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What do you do to the slope if you are trying to create lines that are perpendicular?
opposite reciprocal; Change the sign, flip the number
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Guess Mrs. Tuma's favorite number. (hint: 0-20)
13
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Guess Ms. Pai's favorite number. (hint: 30-50)
44
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True or false: Perpendicular lines will intersect at a 90 degree angle.
true
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Write an equation of a parallel line passing through a point.
y-3 = 2/3(x-1)
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Given the line 3x+2y=10, find the y-intercept.
y=5
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Write an equation of a perpendicular line passing through a point.
y-8 = 2(x+14)
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What would be the solution of parallel lines?
no solution
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Given the line y-2=3(x+1), what is the slope?
m=3
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Are these slopes parallel? perpendicular? or neither?
Parallel
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What is the perpendicular slope of m = 1/4
m = -4
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Are these slopes parallel? perpendicular? or neither?
perpendicular
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How do you know two lines are parallel to each other?
Slopes are the same
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Are these slopes parallel? perpendicular? or neither?
parallel
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