Parallel, Intersecting, or the Same Line

What are intersecting lines?

• A line that intersects two or more lines

• Lines in the same plane that never intersect

• Two lines that cross at exactly one point

• Lines that intersect to form a 90 degree angle

What type of angles are these?

• Adjacent Angles

• Linear Pair

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Choose the most precise answer: These roads are

• Intersecting

• Perpendicular

• Parallel

Which figure shows a set of parallel lines?

• Figure 1

• Figure 2

• Figure 3

• Figure 4

Slopes of parallel lines are...

• opposite reciprocals.

• opposites.

• the same.

• always 7.

What slope is parallel to:  
m = 3/4

• 4/3

• 3/4

• -3/4

• -4/3

What slope is parallel to:  
m = 4

• 4

• -1/4

• -4

• 1/4

Choose the most precise answer: These streets are

• Parallel

• Perpendicular

• Intersecting

• Parallel

• Perpendicular

• Intersecting

What type of line does the picture represent?

• Parallel

• Intersecting

• Perpendicular