Parallel and Perpendicular Equations

Parallel Lines have equations with equal slopes and different y-intercepts.  TRUE OR FALSE

• TRUE
• FALSE

Which statement correctly describes the graph?

• The lines are parallel because they have different slopes.
• The lines are NOT parallel because they have different y-intercepts.
• The lines are parallel since they have the same slope and different y-intercepts.
• The lines are perpendicular.

Given the equations below determine if they are parallel or not.  y = 4x - 2 and  y = 5 + 4x

• Yes, They are parallel
• No, They are not parallel

Tags

CCSS.8.EE.C.8B

Are the following equations parallel or not? HINT: Solve the second equation for y so that it is in y=mx + b form. y = 2x - 5 and 4x + 2y = 10

• Yes, they are parallel
• No, they are not parallel

Tags

CCSS.8.EE.C.8B

A second linear equation is graphed next to the equation y = 5x + 10. Which of the following could represent the slope and y-intercept of the line if the 2 lines are parallel?

• m = 10, y-int: (0, 5)
• m = 5, y-int: (0, 10)
• m = 5, y-int: (0, 4)
• m = 2, y-int: (0, 5)

Tags

CCSS.8.EE.B.5

Graph. y = 2/3x - 3

• 
• 
• 
• 

What is the slope of the line that is perpendicular to the line y = -5x + 3?

• 5
• 1/5
• -1/5
• -5

Tags

CCSS.8.EE.B.6

Slopes of parallel lines are...

• opposite reciprocals.

• opposites.

• identical.

• always 7.

Tags

CCSS.8.EE.B.5

Slopes of perpendicular lines are...

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

Tags

CCSS.8.EE.B.6

What slope is parallel to:  
m = 4

• 4
• -1/4
• -4
• 1/4

Tags

CCSS.8.EE.B.6