CCS Algebra I Assessment Test 1B Name Per

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CCS Algebra I Assessment Test 1B Name Per Do this test carefully showing all of your work and, in the case of multiple choice items, filling in the circle of the letter of the correct response.

1 CCS Algebra I Assessment Test 1B Name Per Do this test carefully showing all of your work and, in the case of multiple choice items, filling in the circle of the letter of the correct response. Note which problems you would like to come back to re-check or work on when you are finished. 1. Solve the equation for x. 5 3 x 8 12 x = 2. Which inequality is shown by the graph? A. x -3 B. x -3 C. x > -3 D. x < -3 3.

2 Total Profit (in dollars) 4. Write the equation of the line that passes though (-6,5) and with the slope in standard form. A. 3x 2y = -28 B. 3x + 2y = -8 C. 2x + 3y = 3 D. 2x + 3y = 27 2 Write this linear equation in slope-intercept form. 4x 9y = -36 Slope intercept form 6. The Dragonfly Pep Band is raising money by selling items with the band logo at basketball games. The graph below shows the total profit depending on the number of customers Total Profit Customers What does the slope of the line that most closely fits the data mean? A. Customers per dollar B. Profit per customer C. Number of items sold D. Total Profit 7. Consider the system of equations: x + y = 8 y = -x - 2 Which statement correctly describes the graphs of these equations? A. The lines are parallel. B. The lines coincide. C. The lines intersect at (2,4). D. The lines intersect at (-2,8)

3 8. Solve the following system of inequalities: Show your solutions on the graph below. y 2x 3y 12 4x + 3y 9 x 9. Consider the graph below. Which function best represents this graph?

4 Distance (in miles) 10 Fred and John are each biking to Franklin Park. The graph below shows the distance each biker is from the park Fred s Ride John s Ride Minutes riding Compare the slopes of the graphs of the two bike riders. Explain the meaning of the slopes in the context of this problem. Compare the y-intercepts of the graphs of the bike riders. Explain the meaning of the y-intercepts in the context of this problem. 11. Mandi plays basketball on the Falcon City High School team. She scored points in the games as shown in the table below. Game Points She is trying to convince the coach that she wants to play varsity based on her shooting ability. Which measure of center should she use to convince the coach of her playing ability? She plays in a 8 th game and scores 0 points. Which measure of center should she use to convince the coach of her playing ability after that game?

5 Average April High Temperatures 12. n an interview for a job, the interviewer tells you that the average annual income of the company s 10 employees is $50,100. The actual annual incomes of the 10 employees are shown below. How is he justifying his answer? Which measure of center should you look at before making a decision? Why? $17,300 $278,500 $45,000 $18,900 $17,400 $25,600 $28,900 $12,500 $24,500 $33, Suppose in problem 12, that every person in the company got a $3000 raise. How would that change the mean, median and mode of the salaries? A. The mean is increased by $3000. B. The median is increased by $3000. C. The mode is increased by $3000. D. All three are increased by $ Latitudes and Temperatures North Latitude (in degrees) In the table above are the latitude and mean high temperatures in April, for selected cities in the Northern Hemisphere. (The mean high temperature is the mean of all the high temperatures for the month.) In all of these cities temperature is measured in degrees Fahrenheit. Write the equation of a linear function that will model this data. What does the slope of the function mean in this context? What does the y-intercept of the function mean in this context?

6 Game Tokens Remaining At a game arcade, players must pay one token for every new game. Some players are better than others and can make the game last a little longer. Each player is given 23 tokens to start. The graph above shows how many tokens players have left after 15 minute periods of play. What kind of correlation does the data on this graph have? A. A weak positive correlation B. A weak negative correlation C. A strong positive correlation D. A strong negative correlation 16. Which has a larger value, n+10, or 2n+3? How did you decide? Give reasoning or examples to support your thinking.

Algebra I Common Assessment # 4 Printable Version

Algebra I Common Assessment # 4 Printable Version 1. Two linear equations are given below. Exactly how many solutions does this system of equations have? 2. no solution two solutions one solution infinite solutions Look at this system of equations. What