Algebra 2 Semester 2 Practice Final Summer 13

ID: A
98. ANS:
7
6
REF: 7-5 Solving Radical Equations
TOP: 7-5 Example 5
99. ANS:
2x – 4
OBJ: 7-5.1 Solving Radical Equations
KEY: extraneous solutions | radical equation | rational exponent
REF: 7-6 Function Operations
OBJ: 7-6.1 Operations with Functions
TOP: 7-6 Example 1
KEY: addition and subtraction of functions | operations with functions
100. ANS:
2x 2 − 2x + 10
REF: 7-6 Function Operations
OBJ: 7-6.1 Operations with Functions
TOP: 7-6 Example 2
KEY: addition and subtraction of functions | operations with functions
101. ANS:
63
55
REF: 7-6 Function Operations
TOP: 7-6 Example 3
102. ANS:
y =±
x + 3
7
OBJ: 7-6.2 Composition of Functions
KEY: composition of functions | operations with functions
REF: 7-7 Inverse Relations and Functions
OBJ: 7-7.1 The Inverse of a Function
TOP: 7-7 Example 2 KEY: inverse relations and functions |
103. ANS:
5
REF: 7-7 Inverse Relations and Functions
TOP: 7-7 Example 6
104. ANS:
f(g(x)) = 10x – 1; g(f(x)) = 10x + 7
REF: 7-6 Function Operations
TOP: 7-6 Example 3
105. ANS:
–5
OBJ: 7-7.1 The Inverse of a Function
KEY: composition of functions | inverse relations and functions
OBJ: 7-6.2 Composition of Functions
KEY: composition of functions | operations with functions
REF: 8-3 Logarithmic Functions as Inverses
OBJ: 8-3.1 Writing and Evaluating Logarithmic Expressions TOP: 8-3 Example 3
KEY: evaluating logarithms
16