Slopes and Equations of Lines

Front

Slopes of perpendicular lines are...

Back

opposite reciprocals.

Tags

CCSS.8.EE.B.6

Front

What is the equation of this line? (Given points: (0, 2) and (2, 0))

Back

y = -x + 2

Front

Find the slope of the line that passes through: (-3, -4) and (7, 6)

Back

1

Tags

CCSS.8.EE.B.5

Front

Find the slope of the line that passes through: (-4, 7) and (-6, -4)

Back

11/2

Tags

CCSS.8.EE.B.5

Front

What is the slope in the equation y=2x + 3?

Back

2

Tags

CCSS.8.EE.B.5

Front

What is the slope-intercept form of a line?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

What does a slope of 0 indicate about a line?

Back

The line is horizontal.

Tags

CCSS.8.EE.B.5

Front

What does an undefined slope indicate about a line?

Back

The line is vertical.

Tags

CCSS.8.EE.B.5

Front

If two lines have slopes of 2 and -1/2, are they perpendicular?

Back

Yes, because their slopes are opposite reciprocals.

Tags

CCSS.8.EE.B.6