Identifying Parallel, Perpendicular or Neither from Slope Intercept Form Equations

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

Tags

CCSS.8.EE.B.6

Slopes of perpendicular lines are ____________________.

• opposite reciprocals.

• opposites.

• identical/same.

• always 7.

Tags

CCSS.8.EE.B.5

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

• -2

• 1/2

• -1/2

• 2

Tags

CCSS.8.EE.B.6

To determine if lines are parallel or perpendicular by looking at their equations you should

• Write the equations in slope intercept form and compare the slopes of the lines.

• Write the equations in standard form and compare the slopes.

• Find the x and y intercepts.

• Guess

Tags

CCSS.8.EE.B.6

Which lines are parallel?

line j: y = 3/2x -4

Line k: y = 2/3x -4

Line l: y = 3/2x -10

line m: y = -3/2x -8

• J and L

• K and L

• J and M

• K and M

Tags

CCSS.8.EE.B.6

Which equation is parallel to: y = 5/7x +2

• y = -7/5x +1

• y = 7/5x +4

• y = -5/7x -3

• y = 5/7x +5

Determine which of the lines, if any, are parallel. Explain.

Line a: 4y + x = 8

Line b: 2y + x = 4

Line c: 2y = -3 + 6

• Lines a and b

• Lines b and c

• Lines a and c

• the same

• none of the above

Tags

CCSS.8.EE.B.6

Are the equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.5

Choose the linear equation that is parallel to the following line