Equations of Parallel and Perpendicular Lines

What are the two essential components needed to write the equation of a line?

• Slope and intercept

• Angle and point

• Point and intercept

• Slope and point

Where can you find the slope in the given equation?

• In the middle of the equation

• At the end of the equation

• In front of the X

• In front of the Y

Tags

CCSS.8.EE.B.5

What is the slope of a line that is parallel to a line with a slope of 2?

• 1

• 2

• 0

• Undefined

Tags

CCSS.8.EE.B.5

How do you start writing the equation of a line given a point (2, 4) and a slope of 2?

• Y - 4 = 2(X - 2)

• Y + 4 = 2(X + 2)

• Y - 2 = 2(X - 4)

• Y + 2 = 2(X + 4)

What happens to the constant term when you move it to the other side of the equation?

• It becomes positive

• It remains the same

• It is eliminated

• It becomes negative

Tags

CCSS.6.EE.B.7

What is the final equation of the parallel line?

• Y = 2X + 4

• Y = 2X

• Y = -2X

• Y = 2X - 4

What is the slope of a line perpendicular to a line with a slope of 2?

• 2

• -2

• -1/2

• 1/2

Tags

CCSS.8.EE.B.6

How do you start writing the equation of a line given a point (1, 2) and a slope of -1/2?

• Y - 1 = -1/2(X - 2)

• Y + 2 = -1/2(X + 1)

• Y - 2 = -1/2(X - 1)

• Y + 1 = -1/2(X + 2)

What is the result of distributing -1/2 in the equation Y - 2 = -1/2(X - 1)?

• 1/2X + 1/2

• 1/2X - 1/2

• -1/2X - 1/2

• -1/2X + 1/2

Tags

CCSS.7.EE.A.1

What is the final equation of the perpendicular line?

• Y = -1/2X - 2.5

• Y = -1/2X + 2

• Y = -1/2X + 2.5

• Y = -1/2X - 2