Parallel Lines and Perpendicular Lines

What are parallel lines?

• Lines that intersect at one point

• Lines that intersect and form a 9o° angle

• Lines that do not intersect

• Lines that cross the x and y axis

Two lines that are parallel will have _________ slopes.

Line A is represented by the line y=\frac{1}{4}x-4. Line B is parallel to Line A. What is the slope of Line B?

• m = \frac{-4}{4} 

•  m = \frac{1}{4} 

• m = \frac{-1}{4} 

• m = 4 

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

• Parallel

• Perpendicular

• Neither

• line l

• line m

• line s

• line t

• line s

• line t

• line m

• line l

• line l

• line m

• line s

• line t

• line s

• line t

• line m

• line l

Are the two linear equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Write the equation of the line PARALLEL to the line y = 4x - 9 that passes through the point (-2, 4)

• y = 4x + 12

• y = -4x -4

• y = -1/4x + 5/2