Alg 2 Sect. 2.1 7 th Date: 5/ 28/24 2.1 Relations & Functions List the domain and range of each relation. 1. {(3 , - 2 ) , ( 4 , 4 ) , (0, - 2 ) , ( 4 , 1 ) , (3 , 2 ) } Domain : 2 3 1 4, 0 , 3 3 Range : 9 (7 ) - 2 = 615 16. f ( x ) = =x -9forx =3 ( 3 , - 2 ) 3 ( 3 ) - 9 - - 2 17. f(x) = _12x for x = -1 -12 ( - 12 ( - 15 ) 18. f(x) = 11x - 11 for x = -11 (=11 -132) 14 (-11 ) - 11 - -132Alg 2 Sect. 2.1 19. f (x) = _x -> forx=9 ( 9 ) = ) 7 ( 2 ) - 9 = Write a function rule to model the cost per month of a long-distance cell phone calling plan. Then evaluate the function for the given number of minutes. 20. Monthly service fee: $4.52 Rate: $.12 per minute Minutes used: 250 Function rule : * (X ) =45z+0.12/ soln : 1863 4. 52 +0. 12 (250 ) 21. Monthly service fee: $3.12 Rate: $.18 per minute 1731 Minutes used: 175 Function rule: 4( x) = 3.12+0.12x Soln: 3.12 to.18 ( 175) Standardized Test Prep 22. If f (x) = -3x + 7 and g(x) = -7x + 3, what is the value of f (-3) - g(3)? a. 40 b. 34 - 3 (- 3) + 7 - 7 ( 3 ) + 3 C. 8 9 + 7 - 18 d. -8 16 2 23. What is the formula for the volume of a cylinder, V = mr2h, solved for h? 24. Which of the following statements are true? 1. -(-6) = 6 and - (-4) > -4 11. 5 + 6 = 11 or 9 - 2 = 11 Ill. -(-4) 10 - 10 IV. 17 > 2 or 6