Mastering Parallel and Perpendicular Lines in Math

What form should the equations be in before starting the process of finding parallel or perpendicular lines?

• Standard form

• Quadratic form

• Point-slope form

• Slope-intercept form

In the slope-intercept form of an equation, what does the 'm' represent?

• Y-intercept

• Slope

• X-intercept

• Constant term

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

When writing an equation for a line parallel to a given line, what must remain the same?

• Y-intercept

• Slope

• Both slope and Y-intercept

• X-intercept

If the original line's equation is y = 3x - 1, what is the slope of a line parallel to it?

• -1

• 3

• -3

• 1

Tags

CCSS.8.EE.B.5

What is the key difference between the Y-intercepts of parallel lines?

• They must be positive

• They must be zero

• They must be different

• They must be the same

Tags

CCSS.HSF-IF.C.7A

What does it mean for two lines to be perpendicular?

• They intersect at a 90° angle

• They never intersect

• They have the same Y-intercept

• They have the same slope

Tags

CCSS.HSG.CO.A.1

What is the opposite reciprocal of a slope of 3?

• -1/3

• 1/3

• -3

• 3

Tags

CCSS.8.EE.B.5

If the slope of the original line is 2, what is the slope of a line perpendicular to it?

• 2

• -1/2

• 1/2

• -2

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

What is the first step in writing the equation of a line perpendicular to a given line?

• Find the Y-intercept

• Use the same X-intercept

• Find the opposite reciprocal of the slope

• Use the same slope

What should you do if given equations are not in slope-intercept form?

• Use them as they are

• Convert them to slope-intercept form

• Convert them to standard form

• Ignore them

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3