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Chapter 1 • • • 1 Chapter Test Chapter Test Define variables and write an equation to model the relationship in each table. 1–2. See margin. L3 Ch. 1 Test L2 Adapted Ch. 1 Test L4 Ch. 1 Alternative 1. Assessment L3 Spanish Ch. 1 Test L4 Spanish Ch. 1 Alternative Assessment • L2 Basic Algebra Ch. 1 Test, Forms D & E • ExamView CD-ROM • Ch. 1 Pre-Made Test • Make your own Ch. 1 test • Online Chapter 1 Test at www.PHSchool.com • • 2. $2.30 $1 $9 2 $4.60 $2 $8 Connecticut 15 3 $6.90 $3 $7 Massachusetts 15 1 3. 3 + 5 - 4 4 2 ? 3 2 15 5. 9 32 4. 8 - 2 4 4 2 0 New Hampshire 9 6. 36 - (4 + 5 ? 4) 12 New Jersey 20 New York 23 Explain why each statement is true or false. Class L3 Date Form A Chapter 1 2. Amount Saved Distance Traveled Distance Remaining 1 $150 10 mi 90 mi 2 $300 25 mi 75 mi 3 $450 40 mi 60 mi 4 $600 88 mi 12 mi 11. Open-Ended Write four rational numbers. Use a number line to order them from least to greatest. Simplify. 3. 4 + 8 ⫼ 2 + 6 ⫻ 2 4. 12 - (-3) 5. -6(-3) + -2 6. (-8)2 ⫼ (-2) 12. Sales The price p of a CD is $17.95. The sales tax rate r is 7.5%. Use the formula C 5 p 1 rp to find the total cost C of the CD. $19.30 11. Check students’ work. Use the scatter plot below for Exercises 13–15. Evaluate each expression. 8. y2 ⫼ z for y = -12 and z = -9 7. 5x + 4 for x = 5 9. Δ6 - 2m« for m = 7 10. -2(2s - 3t) for s = -5.2 and t = 1.9 2 3 for d = 9 12. 2d25 11. ba for a = 32 and b = 265 Find the sum or difference. © Pearson Education, Inc. All rights reserved. 13. c 1.2 26.8 2.5 3.6 14. C 0.4 0 S 2 C 22.7 20.1 S 2.3 28 2.4 27.3 22 13 8 217 d 1 c d 8 26 28 24 Is each statement true or false? If the statement is false, give a counterexample. 15. All real numbers are rational numbers. 16. The absolute value of a negative number is always positive. Simplify each expression. 17. 212 (4 2 6a) 18. -2(-3 + 2a) Write an expression for each phrase. 19. 4 minus the sum of a number and 6 20. 1 more than the quotient of n and 2 Simplify each expression. Justify each step. 21. 41 (4x 2 8) 1 3x 22. (42 - 23)(13 - 32) Algebra 1 Chapter 1 10. the quantity p minus five eighths times the result of one fourth plus p Q p 2 5 R Q 1 4 1 pR 8 Write an equation to model the relationship in each table. 1. Number of Months 9. ten times the result of eleven minus two 10(11 - 2) Form A Test 33 1. n ≠ number, c ≠ cost, c ≠ 2.3n 2. p ≠ payment, c ≠ change, c ≠ 10 – p 13. Is there a positive correlation, negative correlation, or no correlation between daily mean temperature and latitude? neg. correlation 14. What is the daily mean temperature for the location at latitude 58° N? about 418F 1 50 60 40 0 17. 0 1 2 1 Pennsylvania 7 Rhode Island 17 Vermont 6 SOURCE: U.S.Census Bureau Go to www.PHSchool.com for a data update. 17. Make a stem-and-leaf plot for the data. See margin. 18. Find the mean, median, mode, and range of – the data. 13.4%, 15%, 9% and 17% 19. Purchasing The price of a turkey depends on its weight. This week, whole turkeys sell for $1.59 per lb. a. Write a rule to describe the function. p = 1.59w b. What is the price of a 14-lb turkey? $22.26 c. If you had $10 to buy a turkey, how big a turkey could you buy? about 6.3 pounds Identify the independent and dependent variables and write a function rule to describe each situation. 20. the amount of money you earn mowing lawns at $15 per lawn 20–21. See margin. 50 30º 40º 50º Location (north latitude) 15. What is the range of daily mean temperatures? about 208F 16. Writing Explain why ` a ` = a is not always true. b b If a and b have different signs, ` a ` is positive and a b b is negative. 50 7. False, since 2 is a rational number but is not an integer. 8. False; since »0… ≠ 0, which is not pos. Climate Data Daily Mean Temperature (ºF) Name Percent 9 Write an expression for each phrase. Chapter Test State Maine 8. The absolute value of a number is always positive. Chapter Test Percent of People Who Speak a Language Other Than English at Home Change Cost Simplify each expression. L2 Use the table below for Exercises 17–18. Payment Number 7. All rational numbers are integers. 7–8. See margin. Adapted Chapter Test PHSchool.com For: Chapter Test Web Code: ata-0152 21. the profit you make by selling flowers at $1.50 each when each flower costs you $.80 22. a. Write a function rule for the relationship shown in the table. s = 40 + 12w b. Use the function to find the total savings after 7 weeks. $124 Number Total of Weeks Savings 1 $52 2 $64 3 $76 4 $88 Chapter 1 Chapter Test 6 7 9 9 5 5 7 0 3 5 15 means 15% range: 17% 20. number of lawns mowed, amount earned; for n lawns and a amount earned, the function rule is a ≠ 15n. 21. number of flowers sold, amount of profit; for n flowers sold and a amount of profit, the function rule is a ≠ (1.50 – 0.80)n or a ≠ 0.7n