5.5 Using Coordinates to Prove Geometric Theorems

How do you know if two lines, with slopes m₁ and m₂, are parallel based on their slopes?

• m₁ = m₂

• m₁ * m₂ = 1

• m₁ = -m₂

• m₁ * m₂ = -1

How do you know if two lines, with slopes m₁ and m₂, are perpendicular based on their slopes?

• m₁ = m₂

• m₁ * m₂ = 1

• m₁ = -m₂

• m₁ * m₂ = -1

What is the equation for the slope of a line between two points?

What is the slope of line segment AC with coordinates A(0,4) and C(4,6)?

• 2
• 3
• 1.5
• 0.5

What is the slope of line segment AB with coordinates A(0,1) and B(7,0)?

• -1/7
• 7/1

• 0
• 1/7

Which is the distance formula?

What is the length of line segment AB with coordinates A(0,1) and B(7,0)?

• 6.3
• 8.5
• 7.07
• 3.14

Which equation represents the Pythagorean Theorem?