Theorems for Parallel Lines and Perpendicular Lines

Write the relation between the pair of lines

indicated by the arrows in each shape.

Write the relation between the pair of lines

indicated by the arrows in each shape.

Write the relation between the pair of lines

indicated by the arrows in each shape.

Write the relation between the pair of lines

indicated by the arrows in each shape.

Write the relation between the pair of lines

indicated by the arrows in each shape.

Write the equation of a line perpendicular to y = 3x - 8 and that passes through the point (-3, -9)

• y + 9 = -1/3(x + 3)

• y - 9 = -1/3(x - 3)

• y + 9 = -3(x + 3)

• y - 9 = 3(x - 3)

Perpendicular lines have ________ slopes

• same

• opposite

• opposite reciprocal

• reciprocal

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

• Parallel

• Perpendicular

• Neither

Select ALL of the lines that are PERPENDICULAR to y = 3/4x + 9

• y = 3/4x - 3

• y = -3/4x + 9

• y = -4/3x + 8

• 3y = -4x + 5

• 4y = -3x + 7

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

• Parallel

• Perpendicular

• Neither