Unit 1 Retest

Two points A and B are shown on the graph below. What are the coordinates of the midpoint of AB?

• (5, 0)

• (4 3/4, 1)

• (4 1/2, 2)

• (4 1/2, 1 1/2)

Square LMNO is shown in the diagram below. What are the coordinates of the midpoint of diagonal LN?

• A. (-2½, 4½)

• B. (-3½, 3½)

• C. (4½, -2½)

• D. (-2½, 3½)

What is the slope of a line perpendicular to the line with equation y = -⅔ x -5?

• -3/2

• -2/3

• 2/3

• 3/2

A circle has a diameter with endpoints A(-4, 4) and B(2, -3). What is the length of the diameter?

• √85

• √13

• √53

• √37

Below is Triangle A, B, C. What is the length of AC?

• √2 units

• √5 units

• 3 units

• 5 units

The graph of line l is shown below.

Which of the following is the equation of a line that is parallel to the graphed line?

• y = 2x

• y = x - 2

• y = 2x + 1

• y = ½ x

A line passes through the point (8, 4) and is parallel to 9x + 3y = 12. What is the equation of the line?

• y = 3x - 20

• y = -3x + 28

• y = -3x - 28

• y = 3x + 20

A line passes through the point (-2, -9) and is parallel to 5x - y = 7. What is the equation of the line?

• y = -5x - 19

• y = 5x + 1

• y = ⅕ x - 43/5

• y = -⅕ x - 47/5

Consider the conditional statement, "If you water the plants, they bloom."

"If you do not water the plants, they do not bloom." is the ______ of the above conditional statement.

• converse

• inverse

• contrapositive

• bi-conditional

Which of the following statements is the converse of "If you go to the beach, then you won't go to the movies"?

• If you go to the movies, then you won't go to the beach.

• If you go to the beach, then you will go to the movies.

• If you don't go to the beach, then you will go to the movies.

• If you don't go to the movies, then you will go to the beach.