GEO: 3.4 QC (parallel & perpendicular. lines)
1. Tell whether the two lines are parallel perpendicular or neither by finding their slopes.
neither
a     b 
a // b
b
(-3, 3)
a
(1, 2)
(2, -2)
2. Tell whether the two lines are parallel perpendicular or neither by finding their slopes.
parallel
perpendicular
neither
b
(-3, 1)
a
(0,-3)
(1, 2)
(2, 0)
3. Tell whether the two lines are parallel perpendicular or neither by finding their slopes.
neither
perpendicular
parallel
b
a
(-3,-1)
(-3, 1)
(2, 0)
(3,-2)
4. Find the slope of the line CD if,     C=(1, -4) and D=(3, 3).
slope = 
5.  Find the slope of a line perpendicular to a      line with slope m = - ⅜.
slope = 
6. Drag the label that describes the slope of the       graphs below.
negative slope
?
Zero slope
?
positive slope
?
undefined
slope
?
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