Parallel and Perpendicular Lines Test

What does "m" represent in y=mx+b?

• y-intercept
• slope
• macaroni
• nothing

Slopes of perpendicular lines are...

• opposite reciprocals.
• opposites.
• identical.
• always 7.

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

• Parallel
• Perpendicular
• Neither
• The same line

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

• Parallel
• Perpendicular
• Neither

What is the slope of the line?

• 2
• -2
• -1/2
• 1/2

Are the lines perpendicular?

• Yes, because they intersect. 
• No!
• Maybe!
• Yes, because they have a common point.

What is the slope in the equation:  y=4x+3

• 3
• 4x
• 4
• 3x

Slopes of parallel lines are...

• opposite reciprocals.
• opposites.
• the same.
• zero.

If two lines had slopes of -5 and 5 are they parallel, perpendicular, or neither?

• parallel
• perpendicular
• neither

What is the slope of the line?

• -4/5
• 5/4
• -4/-5
• -5/4