2.1-2.3 Quiz Review Name: ________________________________________ Period: __________ Date: ______________________ SOUFS 16 questions 2.1.1: Comparing and Ordering- 1 question 2.1.2: Writing and Graphing- 6 questions 2.2: Solving Inequalities through Addition and Subtraction- 4 questions 2.3: Solving Inequalities through Multiplication and Division- 4 questions 1 word problem Review 1) Complete the following chart of Key Phrases Inequality Symbols Symbol < Key Phrases £ > ³ 2) Order the following from least to greatest - -2 ,-1, 3, 2 , 0 3) Write the sentence as an inequality a. The speed limit on a highway in West Virginia is 70 mph. b. A number h plus 4 is below 17 c. Eight is at least the quotient of a number e and 2 d. 16 exceeds the difference of 8 and a number g e. 19 times a number n is not under 40 f. You must be no fewer than 60 lbs to be able to sit in the from seat of a car g. The temperature, t, in Maine does not exceed 40 degrees in January h. A number p minus 5 is no less than 14 4) Solve and graph the following inequalities. Draw your own graph. a. 9 + q £ 15 b. -3 < y - 4 c. 6> w -2 e. 3p ³ 18 g. p + 4 < 10 i. 2.1 ³ m - 6.7 d. z - ( -7 ) < 5 f. -20x > 5 h. -4 £ g 5 j. -1.2k > 6 5) Tell whether the value is a solution of the inequality. a. 5 + x < 8; x = 3 b. c - 4 ³ 7; c = 11 u ; u = 20 -4 c. 4r < 20; r = 6 d. 3 < e. l + 8 ³ 15; l = 6 f. t -16 < 31; t = 37 6) Write the inequality given by the graph. a. b. c. d. e. f. 7) Graph the following inequalities. Create your own graph. a. x < 3.5 b. x £ 6 c. x > -2 d. x ³10 e. x ³ 3 f. x £ 4 g. x > -1 g. x < 1 8) Three requirements for a lifeguard-training course are shown. a) Write and graph three inequalities that represent the requirements. b) You can swim 250 feet, tread water for 6 minutes, and swim 35 feet under water without taking a breath. Do you satisfy the requirements of the course? Explain. 9) You save $15 per week to purchase a new bike that costs $120. Write and solve an inequality to find the number of weeks you need to save to purchase a bike. 10) The American Heart Association recommends that you consume less than 1500 milligrams of sodium per day. Today you have already taken in 400 milligrams of sodium. Write and solve an inequality that represents the additional amount of sodium you can consume.