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Study Guide and Review - Chapter 7
Graph each function. State the domain and range.
11. f (x) = 3
x
ANSWER: D = {all real numbers} R: = {f (x) | f (x) > 0}
x
13. f (x) = 3(4) − 6
ANSWER: D = {all real numbers} R = {f (x) | f (x) > –6}
15. ANSWER: eSolutions
- Powered
by Cognero
D = Manual
{all real
numbers}
R = {f (x)
| f (x) > –1}
Solve each equation or inequality.
Page 1
Guide and Review - Chapter 7
Study
D = {all real numbers} R = {f (x) | f (x) > –6}
15. ANSWER: D = {all real numbers} R = {f (x) | f (x) > –1}
Solve each equation or inequality.
18. ANSWER: 19. ANSWER: −7
20. ANSWER: 21. ANSWER: 22. ANSWER: 23. eSolutions
Manual - Powered by Cognero
ANSWER: Page 2
ANSWER: Study Guide and Review - Chapter 7
23. ANSWER: in exponential form.
25. Write
ANSWER: 2
26. Write 10 = 100 in logarithmic form.
ANSWER: log10 100 = 2
Evaluate each expression.
27. log4 256
ANSWER: 4
28. ANSWER: −3
Graph each function.
29. f (x) = 2 log10 x + 4
ANSWER: 30. ANSWER: eSolutions
Manual - Powered by Cognero
Page 3
Study Guide and Review - Chapter 7
30. ANSWER: Solve each equation or inequality.
31. ANSWER: 8
32. ANSWER: −6
33. ANSWER: 34. ANSWER: 35. ANSWER: no solution
36. ANSWER: −6
37. eSolutions Manual - Powered by Cognero
ANSWER: no solution
Page 4
36. ANSWER: Study
Guide and Review - Chapter 7
−6
37. ANSWER: no solution
Solve each equation. Check your solution.
44. log5 x − log5 2 = log5 15
ANSWER: 30
45. 3 log4 a = log4 27
ANSWER: 3
46. 2 log3 x + log3 3 = log3 36
ANSWER: 47. log4 n + log4 (n - 4) = log4 5
ANSWER: 5
eSolutions Manual - Powered by Cognero
Page 5
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