Parallel or Perpendicular Slopes

Two lines that are parallel will have _________ slopes.

y = -2/3x + 2
y = 3/2x + 9
These lines are...

• Parallel

• Perpendicular

• Neither

Are the two linear equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Write the equation of the line PARALLEL to the line y = 4x - 9 that passes through the point (-2, 4)

• y = 4x + 12

• y = -4x -4

• y = -1/4x + 5/2

Which of the following slopes represents a line that is perpendicular to the line given by:

• m = -3/2

• m = 2/3

• m = 1/2

• m = -1.5

Choose the best answer to fill in the blanks. Parallel lines always have the ​ (a)   slope. Perpendicular lines have slopes that are ​ (b)   . The product of perpendicular slopes always equals ​ (c)  

• same

• negative reciprocals

• -1

• reciprocals

• 1

• different

• -3

• 1

• -1

• 3

Are the slopes below parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Choose the best answer to fill in the blanks.

Parallel lines always have the ​ (a)   slope.

Perpendicular lines have slopes that are ​ (b)   .

The product of perpendicular slopes always equals ​ (c)  

• same

• negative reciprocals

• -1

• reciprocals

• 1

• different

Are the slopes below parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither