LINES all forms including parallel and perpendicular

The black lines on this Railroad Crossing sign are best described as

(a)   .

• perpendicular lines
• parallel lines
• intersecting lines
• interurban lines

Match the following opposite reciprocal

• -4/5

• 5/4

• 3/2

• 15/4

• -4/15

• -2/3

• 5/7

• -7/5

The yellow yard lines are an example of what type of line? (a)  

• perpendicular lines
• parallel lines
• intersecting lines
• number lines

What is the slope of this line?

Mathematical Equivalence

ON

Which figure shows a set of parallel lines? (a)  

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

The slopes of parallel lines are...

• opposite reciprocals.

• opposites.

• the same.

• always 7.

Which figure shows a set of perpendicular lines? (a)  

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

Slopes of perpendicular lines are (a)  

• opposite reciprocals.
• opposites.
• the same.
• always 7.

What is the slope of the equation?

y = -2x - 1

Mathematical Equivalence

ON

What is the equation of the line?