Standardized Test Practice

NAME _____________________________________________ DATE ____________________________ PERIOD _____________

Standardized Test Practice

Read each question. Then fill in the correct answer on the answer document provided by your teacher or on a sheet of paper.

1. Beth's monthly charge for Internet access c is represented by the function c = 12 + 2.50h, where h represents the number of hours of usage during a month. What is the total charge for a month in which Beth used the Internet for 9 hours? A. $39.95 B. $34.50 C. $27.00 D. $22.50

2. The graph of the line y = ?2x + 1 is shown below. Which table of ordered pairs contains only points on this line?

4. The table shows the number of shoppers in a store on each of the first four days after its grand opening.

Day

Shoppers

1

250

2

310

3

370

4

430

Suppose the pattern continues. Which expression can be used to find the number of shoppers on any day?

A. 250d B. 250d + 60 C. 60d D. 60d + 190

5. Which of the following is the best estimate for the square root of 82? F. 7 G. 8 H. 9 I. 10

F. x y

G. x y

?2 ?1 0

5

3 ?1

?2 ?1 0

3

1 ?1

H. x ?1

0

1

y ?3 ?1 ?1

I. X ?1 0

0

y

3

1 ?1

3.

SHORT RESPONSE What is the domain of

the relation {(?1, 4), (4, 6), (?3, ?7), (2, ?1)}?

80

6. The graph shows the speed of a car.

Which statement is true? A. The speed is increasing. B. The speed is decreasing. C. The speed is constant. D. The speed is increasing then decreasing.

Course 3 ? Chapter 4 Functions

NAME _____________________________________________ DATE ____________________________ PERIOD _____________

7. What is the range of the relation {(0, 2), (1, 3), (2, 4), (1, 4)} F. {0, 1, 2, 3} G. {1, 2, 3, 4} H. {0, 1, 2} I. {2, 3, 4}

8.

SHORT RESPONSE Landon is charged for

each text message that he sends. The graph shows

the total cost of sending text messages.

Write an expression that can be used to find the total cost of sending any number of text messages.

9. Which equation represents a linear function? A. y = ? ? 4 B. ?3 + 1 = y C. y = D. x + 2 = y

10. Which of the following is the value of f (?4) in the function below? f(x) = ?2x ? 3 F. ?11 G. ?5 H. 5 I. 11

11. There are four children in the Velez family. Alano is times as tall as Lupe, and 6 inches taller than

Olivia. Nelia is 56 inches tall, which is 2 inches taller than Olivia. How tall is Lupe? A. 40 in. B. 50 in. C. 54 in. D. 56 in.

12.

EXTENDED RESPONSE Video Mania

is having a sale on DVDs. If you buy one

DVD for $5, the cost of any additional DVDs is $2.

The table shows the total cost c of any number of

DVDs d.

Number of DVDs

Total Cost ($)

1

5

2

7

3

9

10

Part A Copy and complete the table.

Part B Graph the ordered pairs (DVDs, total cost) on a coordinate plane.

Part C Write an equation to find the total cost of any number of DVDs.

Part D How much would it cost to purchase 15 DVDs?

Course 3 ? Chapter 4 Functions

81

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