Parallel and Perpendicular Lines

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

• y-intercept
• slope
• macaroni
• nothing

What does 'b" represent in y=mx=b

• y-intercept
• beans
• nothing
• slope

Determine the slope and y-intercept from the following equation:   2y = 3x + 6

• m: 2/3   b:  (0,3) 
• m: 3/2   b:  (0,3) 
• m:  4  b:  (0,3/2)
• m: 1/5   b:  (0,5) 

Slopes of parallel lines are...

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

Slopes of perpendicular lines are...

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

Which equation represents slope intercept form?

• y - 1 = 2(x + 3)
• 5y=x+5
• y=2x+5
• 4y+2x=8

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

• Parallel
• Perpendicular
• Neither
• The same line

-6x + y = 2
6x + y = 2
These lines are...

• Parallel
• Perpendicular
• Neither

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

• Parallel
• Perpendicular
• Neither

What is the slope of a line parallel to the line whose equation is:  -2x + y = - 7?

• -2
• 1/2
• -1/2
• 2