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Exam Review #1 (solutions)

# Exam Review #1 (solutions) - Answer Key C u m u lat i ve...

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A n s we r K e y Cumul a tiv e R e vi e w 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 . 9 . Yes. Domain is 1, 2, 3, 4. Range is 8, 9, 13, 20. 10 . Yes. Domain is 2, 3, 4. Range is 2. 11 . Yes. Domain is 10, 12, 18, 22. Range is 2, 3, 5. 12 . 13 . 14 . 15 . 16 . 17 . 18 . 19 . 20 . 21 . 44 21 , 73 21 0 5 10 15 20 20 7 5 3 2 0 2 4 6 8 10 10 5 2 . 5 1 12 8 7 6 5 4 3 2 9 8 6 5 3 9 10 x y 2 6 2 10 2 6 14 2 x y 2 6 10 2 2 2 6 10 14 y 5 3 x 13 y 2 3 x 8 x y 1 3 1 3 1 3 1 3 x y 2 6 2 6 2 6 2 6 y 3 2 x 1 2 y 3 5 x 19 5 x y 2 6 2 6 2 2 6 10 14 x y 2 6 2 6 2 2 6 10 y 9 y 4 3 x 12 5 448 2,187 26 5 3 x 8 x 1 3 x 10 x 22 . 23 . 24 . 25 . 26 . 27 . 28 . 29 . 30 . 31 . 32 . no solution 33 . 34 . no solution 35 . one solution 36 . two solutions 37 . 38 . 39 . 40 . 41 . 42 . 43 . 44 . 45 . 46 . 47 . 48 . 49 . 50 . 51 . 52 . 53 . 54 . 55 . 0.4556, 0.7714 56 . 57 . 58 . 59 . 60 . 61 . 62 . 63 . 64 . 65 . 66 . 67 . 68 . c 3 1 c 2 t 9 t 9 t 1 x 2 x 2 5 9 u 2 u 1 7 a 2 a 2 6 4 x 2 5 1 2 x 3 1 2 x 2 y 3 3 y 1 3 x 1 2 x 2 2 x 3 x 3 4 x 7 4 x 7 2 n 1 2 6, 8 81 , 2 1 8 , 1 2 , 3 4 1, 2 3 , 5 2 25 w 2 12 w 1.44 1 16 x 2
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