How to Find Parallel and Perpendicular Slope

What conclusion would you make if the you calculated the slopes to be this?

• Opposite sides parallel

• Consecutive sides or Diagonals are perpendicular

• Opposite sides are congruent

• none of these

What will the same slopes tell you about the quadrilateral?

• Opposite sides are parallel

• Opposite sides are congruent

• Diagonals are congruent

• Diagonals bisect each other

How do you show diagonals are perpendicular?

• They would have opposite reciprocal slopes

• They would have the same slope

• They would have the same midpoint

• They would look perpendicular

How do you show consecutive sides are perpendicular?

• They would have opposite reciprocal slopes

• They would have the same slope

• They would have the same midpoint

• They would look perpendicular

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Match the following given slope and parallel slope

• 8/9

• 8/9

• undefined

• undefined

• 0

• 0

• -3/2

• -1

• -1

• -3/2

Match the following to its perpendicular slope

• 5/7

• -2/3

• 3/2

• -7/5

• -4/5

• 15/4

• -4/15

• 5/4

What conclusion would you make if the you calculated the slopes to be this?

• Opposite sides parallel

• Consecutive sides or Diagonals are perpendicular

• Opposite sides are congruent

• none of these