Slopes on Graph

Slopes of Perpendicular lines are __________?

• Opposite

• Reciprocals

• Opposite Reciprocals

• Equal

Are the Lines Parallel? How do you know?

Line 1 runs through the points (-6, 6) and (0, 5)

Line 2 runs through the points (0, -3) and (6, -4)

• Yes, their slopes are opposite reciprocals

• Yes, their slopes are the same

• No, their slopes are opposite reciprocals

• No, their slope are the same

Are the lines Perpendicular? How do you know? Line 1 runs through the point (0, -1) and (7, 1) Line 2 runs through the point (-1, 4) and (2, -5)

• Yes, their slopes are opposite reciprocals

• No, their slopes are not opposite reciprocals

• Yes, their slope are the same

• No, their slopes are not the same

Are the given lines parallel? How do you know?

• No, they do not have the same slopes.

• No, their slopes are not opposite reciprocals.

• Yes, their slopes are opposite reciprocals.

• Yes, their slopes are the same.

Are the given lines, parallel, perpendicular, or neither. Explain.

• Parallel, they have the same slopes.

• Perpendicular, because their slopes are opposite reciprocals.

• Neither, because their slopes are not the same and are not opposite reciprocals.

• Neither, because their slopes are zero.

How can you find the slope of a line?

• Run over Rise

• Change of x over change of y

• Use the Slope Formula

• Count

The slope of a vertical line will always be _______.

• Run

• Positive

• Undefined

• Zero

• Negative

The horizontal change on a graph is described as​ the ______.

• Run

• Positive

• Undefined

• Zero

• Negative

The slope of a horizontal line will always be _______.

• Run

• Positive

• Undefined

• Zero

• Negative

A graph with a ___________ slope increases from left to right.

• Positive

• Run

• Undefined

• Zero

• Negative