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PracTest1Answers - Practice Test 1 Answers: 17 1. − 50 2....

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Unformatted text preview: Practice Test 1 Answers: 17 1. − 50 2. 8 x 20 y 7 3. 1 6 4. Scatterplot 12. 5. {−6, −5, −3, 0,3, 4} Range: {−4, −1, 0, 2,3,5} f ( 4 ) = −20, f ( −3) = −27 Domain: 3 1 13. y = − x − 2 2 14. A) x = −4 , Slope is undefined B) y = 6 , Slope is zero 5 15. y = − x + 4 3 16. A) 6. Domain: −4 ≤ x ≤ 7 Range: −9 ≤ y ≤ 5 7. 8. ­ 17.5, 0.5, 66.5,372.5,1110.5 9. −35.5,6.,96.5,426.5,1188.5 10. Do not worry about this exercise 11. {( −25, −45) , ( 50, −30 ) , (125, 0 ) , (175, 75)} 2 ( x + 5) + 6 7 3 17. A) m = − 2 2 B) m = 3 3 C) y = − x + 6 2 18. A) B) y = Window is: [0,15,1]x[0,2100,100] B) P ( t ) = −125t + 2000 . Interpretation of slope: The population is decreasing by 125 per day. Interpretation of vertical intercept: The initial population was 2000. C) Day 16. D) P ( 30 ) = −1750 . Not reasonable. Population cannot be negative. ...
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This note was uploaded on 10/18/2011 for the course MAT 1033 taught by Professor Brown during the Spring '10 term at Valencia.

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