Slope of parallel and perpendicular

Parallel lines have __________ slopes

• Equal
• Opposite
• Reciprocal 
• Total

What slope is parallel to:  
m = 3/4

• 4/3
• 3/4
• -3/4
• -4/3

The following represents slopes of two lines.  Which answer choice describes the two lines?
m = 7 and m = -7

• Parallel
• Perpendicular
• Neither

Slopes of perpendicular lines are...

• opposite reciprocals.
• opposites.
• identical.
• always 7.

What is the slope of a line perpendicular to a line with slope ^-6/₅ ?

• ^-6/₅
• ^-5/6
• ⁵/₆
• ^-4/₃