Parallel and Perpendicular lines

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

Which figure shows a set of parallel lines?

• Figure 1
• Figure 2
• Figure 3
• Figure 4

Which figure shows a set of perpendicular lines?

• Figure 1
• Figure 2
• Figure 3
• Figure 4

Choose the most precise answer: These roads are

• Intersecting
• Perpendicular
• Parallel

What slope is parallel to:  
m = 4

• 4
• -1/4
• -4
• 1/4

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5

y = -2/3x + 2
y = 3/2x + 9
These lines are...

• Parallel
• Perpendicular
• Neither

A line is parallel to   y = 2x - 7.
What is it's slope?

• -2
• 1/2
• -1/2
• 2

What does "m" represent in y=mx+b?

• y-intercept
• slope
• measurements
• nothing