Quiz about 2013 STAAR Algebra 2 released EOC questions

Question 1

Some values for the function f(x) = log x are given in Table 1. Which function can generate all the values in Table 2?

Accepted Answer

g(x) = 10^x

Answer

g(x) = x¹⁰

Answer

g(x) = 10/x

Answer

g(x) = 10x

Question 2

The graph of the quadratic function f is shown on the grid below What does the solution set for f(x) = 0 appear to be?

Accepted Answer

7.5, 17.5

Answer

12,5

Answer

12.5, -25

Answer

7.5, 12.5, 17.5

Question 3

The cost of printing cookbooks is $2.09 per book plus a one-time setup fee of $349. All taxes are included. Which of the following functions models a(x), the average cost per book of printing x cookbooks?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 4

Which graph best represents the parent function of y = 4(x +3) ?

Accepted Answer

F

Answer

G

Answer

H

Answer

J

Question 5

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month. At this rate of growth, which function can be used to determine the monthly cell phone sales m months after January?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 6

The graph of the function f is shown on the grid below Based on the graph, for what values of x is f(x) > 0

Accepted Answer

All real numbers < -2 and >2

Answer

All real numbers greater than 0

Answer

All real numbers greater than 1

Answer

All real numbers > -2 and <2

Question 7

The graph of the function h was obtained from the graph of the function g using a composite transformation, as shown below. Which equation can be used to describe h(x) in terms of g(x)z?

Accepted Answer

h(x) = g(x - 4) - 2

Answer

h(x) = g(x + 4) + 2

Answer

h(x) = g(x + 4) -2

Answer

h(x) = g(x -4) + 2

Question 8

A craftsman wants to spend less than $300 on supplies for making bracelets and necklaces. Supplies for 1 bracelet cost $4, and supplies for 1 necklace cost $9. This relationship is shown in the graph below. The craftsman wants to make at least 10 more bracelets than necklaces. Which of the following is a reasonable solution?

Accepted Answer

30 bracelets and 15 necklaces

Answer

25 bracelets and 20 necklaces

Answer

40 bracelets and 20 necklace

Answer

15 bracelets and 25 necklaces

Question 9

Question 9.

Accepted Answer

f

Answer

g

Answer

h

Answer

j

Question 10

Question 10.

Accepted Answer

A translation to the right c units followed by a reflection across the x-axis

Answer

A translation to the left c units followed by a reflection across the x-axis

Answer

A translation to the right c units followed by a reflection across the y-axis

Answer

A translation to the left c units followed by a reflection across the y-axis

Question 11

What is the x-value of the solution to the system of equations below? x + y + z = 8, x + 2y = 6, y + z = 4

Accepted Answer

4

Answer

6

Answer

8

Answer

-4

Question 12

Question 12.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 13

Accepted Answer

H

Answer

F

Answer

G

Answer

J

Question 14

The product of 2 consecutive odd integers is 483. If x represents the smaller integer, which equation can be used to find both integers?

Accepted Answer

x(x + 2) = 483

Answer

x(x + 1) = 483

Answer

x(x + 3) = 483

Answer

(x + 1)(x + 2) = 483

Question 15

Question 15.

Accepted Answer

3.25

Answer

12/4

Answer

14/4

Answer

-3.25

Question 16

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 17

An antibiotic is introduced into a colony of 12,000 bacteria during a laboratory experiment. The function below can be used to model the number of bacteria in the colony after m minutes. n(m) = 12,000(0.851)^m/10 Which value is closest to the amount of time needed for the population of the colony to drop to 8,000 bacteria?

Accepted Answer

25

Answer

11

Answer

8

Answer

42

Question 18

The given function models the equivalent resistance in ohms, R, when a fixed 9-ohm resistor is connected in parallel with a variable resistor of x ohms. R = 9x/( 9 + x ) Which value of x is closest to the number of ohms needed in the variable resistor for there to be an equivalent resistance, R, of 6.4 ohms?

Accepted Answer

22.2

Answer

15,4

Answer

37.6

Answer

3.7

Question 19

A sector of a circle is shown below. The area, A, of the sector is times the square of the radius, r. Which graph represents this 4 relationship?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 20

What is the solution set for x2 + 4 = 6x?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 21

A plane intersects a double cone as shown below. What conic section is created by this intersection?

Accepted Answer

Hyperbola

Answer

Circle

Answer

Ellipse

Answer

Parabola

Question 22

Each year an architecture firm employs senior interns and junior interns. Senior interns receive $400 per week, and junior interns receive $300 per week. This year a minimum of 7 but no more than 13 interns will be hired. The amount spent per week on interns cannot exceed $4,000. Which statement about this situation is not true?

Accepted Answer

If both types of interns are hired, the firm will spend a maximum of $3,800 per week on interns.

Answer

The architecture firm can employ 13 junior interns.

Answer

The architecture firm can employ 4 senior interns and 7 junior interns.

Answer

If both types of interns are hired, the firm will spend a minimum of $2,200 per week on interns.

Question 23

Question 23.

Accepted Answer

G

Answer

F

Answer

H

Answer

J

Question 24

What is the solution set for the following equation?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 25

Which function is equivalent to its inverse?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 26

Which of the following gives the equations for all the vertical asymptotes of the graph of

Accepted Answer

x=-8 and 5

Answer

x=-4

Answer

x=-5 and 8

Answer

x=-2 and 5

Question 27

What is the range of f(x) = x2 + 1?

Accepted Answer

All real numbers greater than or equal to 1

Answer

All real numbers

Answer

All real numbers greater than or equal to 0

Answer

All real numbers less than or equal to 1

Question 28

Which of the following ordered pairs is a solution to the system of inequalities given below? x + y < 4, x² + y < 8

Accepted Answer

1,2

Answer

1,5

Answer

4,-1

Answer

-4,-1

Question 29

Which type of transformation can be used to obtain the graph of g(x) = 4(2^x ) from the graph of f(x) = 2^x ?

Accepted Answer

Vertical stretch

Answer

Vertical shrink

Answer

Vertical shift down

Answer

Vertical shift up

Question 30

What is the greatest value in the domain of the function graphed below?

Accepted Answer

6

Answer

2

Answer

4

Answer

7

Question 31

A function is graphed below. Which function is best represented by this graph?

Accepted Answer

F

Answer

G

Answer

H

Answer

J

Question 32

The average speed of sound in air at t degrees Celsius can be found using the function below. The speed, s, is measured in meters per second. If sound is traveling in air at an average speed of 356.5 meters per second, which temperature is closest to the value of t?

Accepted Answer

43C

Answer

76C

Answer

503C

Answer

309C

Question 33

A factory began producing new parts. Data were collected on the number of defective parts per 10,000 parts produced. The graph shown displays some of the data for the first 10 weeks of production. Based on the graph, during which week were approximately 130 defective parts per 10,000 produced?

Accepted Answer

5

Answer

week 3

Answer

6

Answer

8

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