OB 5

Expressions and Equations

100

What is the value of the expression below?

(- 2)³(- 2)²

-32

200

In 2005, the U.S. Mint in Denver produced 4 04 108 . Oregon state quarters. What is 4.04 x 10^8 in standard notation? 

A. 40,400,000

B. 404,000,000

C. 4,040,000,000

D. 40,400,000,000

404,000,000

300

David drew  ABC on a coordinate plane, as shown below. David reflected  ABC over the x-axis. What are the coordinates of the image of point A?

A'(1,-4)

B'(4,-1)

C'(1,-1)

400

Which of the following equations has infinitely many solutions?

A. 2x + 3 = 5 + 2x

B. 2x + 3 = 5 +3x

C. 3x - 5 = -5 + 2x

D. 3x - 5 = -5 + 3x

3x - 5 = -5 + 3x

500

Simplify. 

-2(x - 5) - 1/3(9x - 12) 

-3(2x + 1) - 1/4(8x - 20)

1: -5x + 14

2: -8x + 2

Functions

100

Is this a function?

no

200

Function A and Function B are linear functions. 

Which function has a greater slope?

Function A has a greater slope

300

Write a function rule for this table. 

f(x) = x + 4

400

The graph of a function is shown below. What is true about the function on the interval -6 < x <0?

It is decreasing

500

What does the y-intercept tell you about this situation?

The membership cost $15

Geometry

100

The graph shows pentagons RSTUV and R'S'T'U'V'.

Which sequence of transformations map RSTUV onto R'S'T'U'V'? 1, 2, or 3.

2

200

Under a dilation, triangle A(0,0), B(0,4), C(6,0) becomes triangle A'(0,0), B'(0,10), C'(15,0). What is the scale factor for this dilation? 

A. 2

B. 2.5

C. 4

2.5

300

Look at this diagram.

If GI and JL are parallel lines and mLKH = 55°, what is mIHF?

55°

400

D. √45

500

orWatch a video

Relative to Estelle's home, Greenwood is 28 kilometers due north and Fairfax is 21 kilometers due east. One day, Estelle decides to run some errands that will require her to leave home and drive to Greenwood, then go directly to Fairfax, and finally return home. How long of a drive will she be making?

84 kilometers

Statistics and Probability

100

What is the equation of the trend line in the scatter plot?

y = -5/7x + 8

200

The two scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted.

300

A linear equation is graphed below. 

Which situation could the equation represent? Select all that apply

A. Trisha made $15 per hour tutoring her neighbors son. She also got a $50 holiday bonus

B. Jamal's new job pays $15 per hour. Before starting, he had to spend $50 on new work clothes

C. Denise has $50 saved up, and she adds $15 to her savings each week

D. Louis has $50 in his charity jar. Each month, he donates $15

A and C

400

The superintendent of Madison School District asked 175 middle school and high school teachers whether they prefer teaching morning classes or afternoon classes. This table shows the relative frequencies from the survey.

 How many more teachers prefer teaching morning classes than prefer teaching afternoon classes?

36%

500

Ms. Woodman is giving her classes a research project on historical figures of the Revolutionary War. She asked her students whether they would prefer to make a video documentary or stage a live performance. This table shows the results.

What percentage of boys would prefer to stage a live performance? Round your answer to the nearest tenth of a percent.

19.4%

Potpourri

100

A mailing tube in the shape of a cylinder has a height of 24 inches and a radius of 3 inches. What is the volume, in cubic inches, of the mailing tube? (Use 3.14 for pi.)

216π cubic inches 

200

Find the missing number so that the equation has no solutions.

2

300

Is (-2, 6) a solution to this system of equations?

no

400

Which of the following numbers is not a rational number?

A. -3

B. 2.7

C. √4

D. √5

D. √5

500

 What two integers is √19 between?

A. 6 and 7

B. 4 and 5

C. 3 and 4

D. 5 and 6

B. 4 and 5