Slope of Lines Graphed

Slopes of parallel lines are...

• opposite reciprocals.

• opposites.

• identical.

• always 7.

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

A line is perpendicular to    y = 2x - 7.
What is the slope of this line? 

• -2

• 1/2

• -1/2

• 2

Write an equation of a line perpendicular to
y = 2x + 3 through (-2, 4)

• y = -3/2x + 3

• y = 3/2x + 3

• y = -1/2x + 3

• y = 3x - 3/2

Which of the following lines goes through the point (-3, 4) and is perpendicular to  y = 3/2x + 6?

• y = 3/2x - 6

• y = 2/3x + 3

• y = -2/3x - 2

• y = -2/3x + 2

In "y = mx + b", the "m" represents ______.

• y-intercept

• x-intercept

• slope

• the formula

A vertical line has a slope of ___

• undefined

• zero

• 1

• -1

The two points (-2, 7) and (4, -3) have a slope of

• -3/5

• -1/5

• -5/3

• -5