2.3 IDWD Notes - Slope

Multiple Choice

Find the slope: (-2, -3), (-2, -1)

• 0

• undefined

• 1

• -1

Multiple Choice

Find the slope: (-3, -4), (-5, -2)

• 0

• undefined

• 1

• -1

Multiple Choice

Find the slope: (-2, 4), (1, 4)

• 0

• undefined

• 8/3

• 8

Multiple Choice

Find the slope: (3, 4), (-4, -2)

• 0

• undefined

• 6/7

• 6

Multiple Choice

Tell whether the lines are parallel, perpendicular, or neither.

Line 1:  through (5, 8) and (7, 2)

    Line 2:  through (-7, -2) and (-4, -1)

• m₁ = -3

  m₂ = 1/3

  perpendicular

• m₁ = 1/3

  m₂ = 1/3

  parallel

• m₁ = -3

  m₂ = 1/3

  parallel

• m₁ = -3

  m₂ = -3

  perpendicular

Multiple Choice

Tell whether the lines are parallel, perpendicular, or neither.
Line 1:  through (1, -4) and (4, -2)

     Line 2:  through (8, 1) and (14, 5)

• m₁ = 3/2

  m₂ = 3/2

  parallel

  
  

• m₁ = 2/3

  m₂ = 2/3

  parallel

• m₁ = -3/2

  m₂ = 2/3

  perpendicular

• m₁ = 2/3

  m₂ = 2/3

  perpendicular

Multiple Choice

Tell whether the lines are parallel, perpendicular, or neither.  From two equations.

y = 4x + 4 and y = -¼ x + 7

• parallel

• perpendicular

• neither

Multiple Choice

Tell whether the lines are parallel, perpendicular, or neither.  From two equations.

y = ¾ x - 4 and y = 4x - 3

• parallel

• perpendicular

• neither

Multiple Choice

Tell whether the lines are parallel, perpendicular, or neither.  From two equations.

y = -2x + 1 and y = 3x + 3

• parallel

• perpendicular

• neither

Multiple Choice

Tell whether the lines are parallel, perpendicular, or neither.  From two equations.

y = 5x - 2 and y = -5x -2

• parallel

• perpendicular

• neither

Multiple Choice

Tell whether the lines are parallel, perpendicular, or neither.  From two equations.

y = -4x + 1 and y = -4x + 3

• parallel

• perpendicular

• neither