Parallel & Perpendicular Slopes

Two lines that are parallel will have ...

• Slope that is opposite reciprocals

• No slope

• Slope that is the same

• none of the above

Two lines that are perpendicular lines have ...

• Slope that is opposite reciprocals

• No Slope

• Slope that is the same

• none of the above

Match the following opposite reciprocal

• -4/15

• 15/4

• 3/2

• -7/5

• -4/5

• 5/4

• 5/7

• -2/3

Which two lines are perpendicular?

A line is perpendicular to    y = 2x - 7.
What is the slope of this line? 

• -2
• 1/2
• -1/2
• 2

Slopes of parallel lines are...

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

Which two lines are parallel?

Which is the equation of the line that is parallel to the graph of y = 5x + 7 and has a y-intercept at (0, -2)?

• y = 5x - 2

• y = -2x + 7

• y = 5(x - 2)

• y = -1/5x - 2