Practice - Ms. Berenyi's Classes
Practice
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AMC Study Guide and Practice Masters
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NAME _____________________________ DATE _______________ PERIOD ________
1-1
Practice
Relations and Functions
State the domain and range of each relation. Then state whether
the relation is a function. Write yes or no.
1. {(1, 2), (3, 10), (2, 20), (3, 11)}
2. {(0, 2), (13, 6), (2, 2), (3, 1)}
3. {(1, 4), (2, 8), (3, 24)}
4. {(1, 2), (3, 54), (2, 16), (3, 81)}
5. The domain of a relation is all even negative integers greater than 9. The range y of the relation is the set formed by adding 4 to the numbers in the domain. Write the relation as a table of values and as an equation. Then graph the relation.
Evaluate each function for the given value.
6. (2) if (x) 4x3 6x2 3x
7. (3) if (x) 5x2 4x 6
8. h(t) if h(x) 9x9 4x4 3x 2
9. ( g 1) if (x) x2 2x 1
10. Climate The table shows record high and low temperatures for selected states. a. State the relation of the data as a set of ordered pairs.
b. State the domain and range of the relation.
Record High and Low Temperatures ( ?F)
State
High
Low
Alabama
112
27
Delaware
110
17
Idaho
118
60
Michigan
112
51
New Mexico
122
50
Wisconsin
114
54
Source: National Climatic Data Center
c. Determine whether the relation is a function.
? Glencoe/McGraw-Hill
2
Advanced Mathematical Concepts
1-2
NAME _____________________________ DATE _______________ PERIOD ________
Practice
Composition of Functions
Given ( x) 2x2 8 and g( x) 5x 6, find each function.
1. ( g)(x)
2. ( g)(x)
3. ( g)(x)
4. g (x)
Find [ g](x) and [g ](x) for each (x) and g(x).
5. (x) x 5
6. (x) 2x3 3x2 1
g(x) x 3
g(x) 3x
7. (x) 2x2 5x 1 g(x) 2x 3
8. (x) 3x2 2x 5 g(x) 2x 1
9. State the domain of [ g](x) for (x) x2 and g(x) 3x.
Find the first three iterates of each function using the given
initial value.
10. (x) 2x 6; x0 1
11. (x) x2 1; x0 2
12. Fitness Tara has decided to start a walking program. Her initial walking time is 5 minutes. She plans to double her walking time and add 1 minute every 5 days. Provided that Tara achieves her goal, how many minutes will she be walking on days 21 through 25?
? Glencoe/McGraw-Hill
4
Advanced Mathematical Concepts
1-3
NAME _____________________________ DATE _______________ PERIOD ________
Practice
Graphing Linear Equations
Graph each equation using the x- and y-intercepts.
1. 2x y 6 0
2. 4x 2y 8 0
Graph each equation using the y-intercept and the slope.
3. y 5x 12
4. y 12 x
Find the zero of each function. Then graph the function.
5. (x) 4x 3
6. (x) 2x 4
7. Business In 1990, a two-bedroom apartment at Remington Square Apartments rented for $575 per month. In 1999, the same two-bedroom apartment rented for $850 per month. Assuming a constant rate of increase, what will a tenant pay for a two-bedroom apartment at Remington Square in the year 2000?
? Glencoe/McGraw-Hill
6
Advanced Mathematical Concepts
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