Directed Line Segments and Modeling — Unit test

Question 1

On a coordinate plane, 2 lines are shown. Line H J has points (negative 4, negative 2) and (0, 4). Line F G has points (negative 4, 1) and (0, negative 2).

Revolt · Accepted Answer

They are not perpendicular because their slopes are not negative reciprocals.

Question 2

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

Revolt · Accepted Answer

12 units

Question 3

On a coordinate plane, a line is drawn from Rock to Tree. The x- and y-axes are labeled feet. Rock is at (3, 2) and Tree is at (16, 21).

Revolt · Accepted Answer

(7.6, 8.8)

Question 4

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.

Revolt · Accepted Answer

They are alternate interior angles, so angle 3 also measures 130°.

Question 5

Segment CD is shown on the graph.

Revolt · Accepted Answer

y = (3 – 1) + 1

Directed Line Segments and Modeling — Unit test Answers

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