Unit 8 Review

Front

What are the characteristics of parallel lines?

Back

Parallel lines have the same slope and never intersect.

Front

What are the characteristics of perpendicular lines?

Back

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

Front

What is the Distance Formula?

Back

Front

If the distance between two points is 8 units and the midpoint is (-1, 1), how do you find the other point given one point?

Back

Use the midpoint formula: If M = ((x_1 + x_2)/2, (y_1 + y_2)/2), solve for (x_2, y_2).

Front

What is the distance between the points (2, 1) and (5, 4)?

Back

The distance is approximately 4.24 units.

Front

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

Back

The slope of the perpendicular line is -1/2.

Front

How do you calculate the length of a diagonal path in a right triangle?

Back

Front

What is the formula for finding the midpoint between two points?

Back

Midpoint M = ((x_1 + x_2)/2, (y_1 + y_2)/2).

Front

If two lines are neither parallel nor perpendicular, what can be said about their slopes?

Back

Their slopes are different and not opposite reciprocals.

Front

What is the significance of the slope in a linear equation?

Back

The slope indicates the steepness and direction of the line.