Lesson 1.1 Practice B Functions Worksheet With Answer Key Page 12

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9.
14. d
10.
15.
 4x + 10
2
11.
16. y = x
17. y = 2x
 4x + 1
2
 18x + 15
2
18. y = 3x
 6x + 8
2
19. y = x
2
20. y = 4x
+ 12x + 8
21. y = 3x
2
+ 3x + 18
22. minimum, 3
12.
23. maximum, 4
24. minimum, 3
25. minimum, 4
26. minimum, 2
25
27. maximum,
13.
4
28. As a increases, the graph becomes more
narrow and the vertex moves down.
29. 260
30. 16.9

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