Test Bank for Algebra and Trigonometry Enhanced with.pdf

Test Bank for Algebra and Trigonometry Enhanced with
Graphing Utilities 8th Edition Sullivan




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, MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Solve the equation.
-3x + 5 6 7x
1) + =-
7 7 6
66 66 6 6
A) - B) C) - D)
31 67 31 31
Answer: A

Decide whether the following is an expression or an equation.
2) 7x - (6x - 1) = 2
A) Equation B) Expression
Answer: A

Solve the equation.
3) -0.02x + 0.15(x + 6000) = 1160
A) {200,000} B) {200} C) {20,000} D) {2000}
Answer: D

4) -0.05y + 0.1(6000 - y) = 0.35y
A) {1200} B) {3600} C) {300} D) {3000}
Answer: A

f
5) - 5=1
4
A) {-24} B) {24} C) {16} D) {-16}
Answer: B

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

Provide an appropriate response.
6) Find all values of s that make this statement true: 8(9s - 4) = 72s - 32.
Answer: Since the equation is an identity, the solution set is {all real numbers}.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

7) 5x2 - 7 = 3x
Is this a linear equation?
A) Yes B) No
Answer: B

Decide whether the equation is conditional, an identity, or a contradiction. Give the solution set.
8) 5(2f - 31) = 10f - 155
A) Contradiction; ø B) Identity; ø
C) Conditional; {0} D) Identity; {all real numbers}
Answer: D




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