Parallel, Perpendicular, Distance, and Midpoint

Front

What is the slope of a line perpendicular to a line with slope -6/5?

Back

5/6

Front

Given two points (x1, y1), (x2, y2), the distance between them is:

Back

√((x2 - x1)² + (y2 - y1)²)

Front

What is the distance between (2,9) and (1,5)?

Back

4.12

Front

Two lines that are parallel will have ...

Back

Slopes that are the same

Front

Two lines that are perpendicular have ...

Back

Slopes that are opposite reciprocals

Front

Define parallel lines.

Back

Lines in a plane that never meet and have the same slope.

Front

Define perpendicular lines.

Back

Lines that intersect at a right angle (90 degrees) and have slopes that are opposite reciprocals.

Front

What is the formula for finding the midpoint between two points (x1, y1) and (x2, y2)?

Back

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Front

If the slope of a line is 3, what is the slope of a line perpendicular to it?

Back

-1/3

Front

What is the distance between the points (3,4) and (7,1)?

Back

5.0