Writing Equations of Parallel or Perpendicular Lines

Front

What is the slope of a line parallel to y = 2x + 3?

Back

The slope of a line parallel to y = 2x + 3 is 2.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line perpendicular to y = -2x + 1?

Back

The slope of a line perpendicular to y = -2x + 1 is \frac{1}{2}.

Tags

CCSS.8.EE.B.6

Front

Write the equation of a line parallel to y = 2x + 3 that passes through (3, 1).

Back

y = 2x - 5.

Front

Write the equation of a line perpendicular to y = -2x + 1 that passes through (2, 3).

Back

y = \frac{1}{2}x + 2.

Front

What is the definition of parallel lines in terms of slope?

Back

Parallel lines have the same slope.

Tags

CCSS.8.EE.B.5

Front

What is the definition of perpendicular lines in terms of slope?

Back

Perpendicular lines have slopes that are negative reciprocals of each other.

Tags

CCSS.8.EE.B.6

Front

If a line has a slope of 0, what type of line is it?

Back

A line with a slope of 0 is a horizontal line.

Tags

CCSS.8.EE.B.5

Front

If a line has an undefined slope, what type of line is it?

Back

A line with an undefined slope is a vertical line.

Tags

CCSS.8.EE.B.5

Front

What is the equation of a horizontal line that passes through the point (0, 3)?

Back

y = 3.

Front

What is the equation of a vertical line that passes through the point (3, 0)?

Back

x = 3.