Coordinate Geometry Regents Review

Find the midpoint of the segment with the endpoints: 
(-4, 5) and (7, -9) 

• (-1.5, 2)

• (5.5, -7)

• (-2, 1.5)

• (1.5, -2)

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 the diagonals are congruent?

• Measure them with a ruler

• Use the midpoint formula

• Use the slope formula

• Use the distance formula

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 diagonals bisect each other?

• Use the distance formula-they would have the same length

• Use the midpoint formula-they would be the same

• Use the slope formula-they would have opposite reciprocal slopes

• Hope I don't have to show this on the test
  (Really???)

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

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 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 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 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