Parallel & Perpendicular Equations

Find the slope of:
(1,8) and (3,12)

• 2
• 1/2
• 9/7
• -2

Tags

CCSS.8.EE.B.5

Find the slope of:
(12,-2) and (4, -6)

• -1/2
• 5/7
• -2
• 1/2

Tags

CCSS.8.EE.B.5

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

• TRUE
• FALSE

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

Given the equations in point slope form, do the equations form parallel lines? y - 2 = 4(x + 1) and y - 2 = 4(x + 6)

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

Slopes of perpendicular lines are...

• opposite reciprocals

• the same

• opposite

• always 7

Tags

CCSS.8.EE.B.6

Write an equation that is parallel to -4x + 2y = 10 and passes through the point (2, -1)

• y = 2x + 5

• y = 5/2 + 5x

• y = 2x - 5

• y = -2x + 3

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.C.8B

Write an equation that is perpendicular to 4x – 3y = 6 and passes through the point (8, -3)

• y = -3/4x + 4

• y = -2x + 13

• y = -3/4x + 3

• y = -2x - 3

Write an equation that is parallel to

3x + 3y = 12 and passes through the point (3, 4)

• y = -x + 7

• y = -3 - x

• y = x + 1

• y = -x/3