coord geom proofs

Slopes of parallel lines are...

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

Tags

CCSS.8.EE.B.5

Slopes of perpendicular lines are...

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

Tags

CCSS.8.EE.B.5

What slope is parallel to:  
m = 3/4

• 4/3
• 3/4
• -3/4
• -4/3

Tags

CCSS.8.EE.B.6

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5

Tags

CCSS.8.EE.B.6

What formula do you use to decide if there is a right angle based on coordinates? 

• distance
• midpoint
• slope
• partitioning a segment

Tags

CCSS.HSG.GPE.B.6

Which option could be used to prove a quadrilateral is a parallelogram?

• Both pairs of opposite sides are congruent

• Diagonals are congruent

• One pair of opposite sides are congruent

• Both pairs of opposite sides are congruent and diagonals are congruent

Tags

CCSS.HSG.CO.C.11

Which option could be used to prove a quadrilateral is a square?

• All sides are congruent

• Diagonals are congruent

• All sides are congruent and diagonals are congruent

• Opposite sides are parallel

Tags

CCSS.HSG.CO.C.11

We use the distance formula to do what?

• See if opposite sides are parallel
• See if opposite sides are congruent
• See if diagonals have the same slope
• See if diagonals bisect each other

Tags

CCSS.HSG.GPE.B.7

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

Tags

CCSS.HSG.CO.C.10

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

Tags

CCSS.HSG.CO.C.11