Parallel and Perpendicular lines

Parallel and Perpendicular lines

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Learning Target

• I can determine if two given lines are parallel, perpendicular, or neither.

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Multiple Choice

y = 5/7x +2

y = 5/7x - 30

These lines are...

Parallel Lines: Same Slope

Perpendicular Lines: Negative Reciprocal Slopes (i.e. 2/3 and -3/2)

• Parallel

• Perpendicular

• Neither

Multiple Choice

y = 6x + 2

y = -6x + 2

These lines are...

Parallel Lines: Same Slope

Perpendicular Lines: Negative Reciprocal Slopes (i.e. 2/3 and -3/2)

• Parallel

• Perpendicular

• Neither

Multiple Choice

y = -2/3x + 2

y = 3/2x + 9

These lines are...

Parallel Lines: Same Slope

Perpendicular Lines: Negative Reciprocal Slopes (i.e. 2/3 and -3/2)

• Parallel

• Perpendicular

• Neither

Multiple Choice

 $m_1:\ \left(-4,-1\right),\ \left(-2,5\right)$ 
 $m_2:\ \left(-5,4\right),\ \left(4,1\right)$  

These lines are...

Parallel Lines: Same Slope
Perpendicular Lines: Negative Reciprocal Slopes (i.e. 2/3 and -3/2)

• Parallel

• Perpendicular

• Neither

Multiple Choice

 $m_1:\ \left(-2,-3\right),\ \left(5,4\right)$ 
 $m_2:\ \left(1,5\right),\ \left(5,-3\right)$  

These lines are...

Parallel Lines: Same Slope
Perpendicular Lines: Negative Reciprocal Slopes (i.e. 2/3 and -3/2)

• Parallel

• Perpendicular

• Neither

Multiple Choice

 $m_1:\ \left(-3,-2\right),\ \left(3,4\right)$ 
 $m_2:\ \left(0,-3\right),\ \left(6,3\right)$  

These lines are...

Parallel Lines: Same Slope
Perpendicular Lines: Negative Reciprocal Slopes (i.e. 2/3 and -3/2)

• Parallel

• Perpendicular

• Neither

Poll

Rate your confidence with Parallel and perpendicular lines so far:

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Independent Work!

• Complete