Slopes of Parallel and Perpendicular Lines — Unit test Answers

On a coordinate plane, a line goes through (negative 5, negative 4) and (0, negative 3). A point is at (negative 2, 2).

A pipe cleaner lay across a wire shelf. The wires that make up the shelf are parallel, and the pipe cleaner is a transversal. The parallel wires are labeled a, b, and, c, and the angles are labeled with numbers.

On a coordinate plane, line A B goes through (negative 2, 4) and (0, negative 4). Point Z is at (0, 2).

On a coordinate plane, line D F goes through points (negative 1, negative 3) and (2, 3). Point G is at (negative 4, negative 4).

Determine the missing information in the paragraph proof.Given: Line PQ is rotated 90° counterclockwise to form line P’Q’. The lines are perpendicular. Line PQ contains the points (a, b) and (c, d). Line P’Q’ contains the points (–b, a) and (–d, c).Prove: The slopes of perpendicular lines are negative reciprocals.

Consider the diagram.

In the diagram, DC is 10 units and BC is 6 units.

Two parallel lines are crossed by a transversal.

On a coordinate plane, 2 lines are shown. Line P Q has points (negative 5, 3) and (5, 1). Line R S has points (negative 4, negative 2) and (0, negative 4).

In the diagram, CE=12 units and BE=5 units.

Consider the two planes.

The graph shows the relationship between the volume of a rectangular prism and the volume of a square pyramid with an identical base and height.

Consider the diagram.

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In the diagram, the length of segment TR can be represented by 5x – 4.

On a coordinate plane, 2 lines are shown. Line A B has points (negative 4, negative 2) and (4, 4). Line C D has points (0, negative 3) and (4, 0).

A line contains points M(1, 3) and N(5, 0). What is the slope of MN?

Which diagram shows lines that must be parallel lines cut by a transversal?

The table represents a linear function.

Segment CD is shown on the graph.