Writing Linear Equations & Parallel & Perpendicular Lines Review

Slopes of parallel lines are...

• opposite reciprocals.
• opposites.
• the same.
• always 7.

Slopes of perpendicular lines are...

• opposite (sign) reciprocals.

• opposites.

• identical.

• always 7.

-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 equation of a line that is perpendicular to the line
y = 3x - 6 and passes through the point (15,5).

• y = -3x + 10
• y= 1/3x +10
• y = -1/3x +10
• y = 3x -15

Write an equation that is parallel to the line
y = x - 5 through (1, -2)

• y = -3x +1
• y = x - 3
• y = x + 1
• y = 3x +1 

Write an equation of a line perpendicular to
y = 2/7x - 5 through (2, -3)

• y = -7/2x + 4
• y = -4x - 7/2
• y = 4x - 7/2
• y = 7/2x + 4

Write an equation for a line parallel to
y = 5/4x + 4 through (-4, -3)

• y = 5/4x +2
• y = -5/4x + 2
• y = 2x - 5/4
• y = 3/4x + 2

Which equation matches the graph? (Click me to see the image)

• y = -1/4x + 2

• y = 1/4x + 2

• y = 1x + 4

• y = 4x + 2

Write the equation for the line in slope-intercept form.

• y=-1x+3
• y=4x+3
• y=¼x+3
• y=-4x+3