Question 1

Graph the pair of functions on the same plane. Use a dashed line for g(x).
-
A) 
B) 
C) 
D)

Accepted Answer

The answer of Graph the pair of functions on the...

Question 2

Graph the pair of functions on the same plane. Use a dashed line for g(x).
-
A) 
B) 
C) 
D)

Accepted Answer

The answer of Graph the pair of functions on the...

Question 3

Solve the problem.
-Suppose a life insurance policy costs $16 for the first unit of coverage and then $4 for each additional unit of coverage. Let C(x) be the cost for insurance of x units of coverage. What will 10 units of coverage cost?
A) $40
B) $56
C) $24
D) $52

Accepted Answer

The answer of Solve the problem.
-Suppose a life insurance policy...

Question 4

Solve the problem.
-A video rental company charges $3 for the first day, and $2 for each additional day, for renting video tape. Use the greatest integer function and write an expression for renting a video tape for x days.
A) 
B) 
C) y = 2x + 3
D)

Accepted Answer

The answer of Solve the problem.
-A video rental company charges...

Question 5

Graph the pair of functions on the same plane. Use a dashed line for g(x).
-
A) 
B) 
C) 
D)

Accepted Answer

The answer of Graph the pair of functions on the...

Question 6

Graph the pair of functions on the same plane. Use a dashed line for g(x).
-
A) 
B) 
C) 
D)

Accepted Answer

The answer of Graph the pair of functions on the...

Question 7

Solve the problem.
-Employees of a publishing company received an increase in salary of 5% plus a bonus of $600. Let S(x) represent the new salary in terms of the previous salary x. Find the value of S(19,000).
A) $20,550
B) $19,600
C) $17,524
D) $29,100

Accepted Answer

S(x) = x + 0.05x + 600 = 1.05x + 600. For x = 19,000, S(19,000) = 1.05(19,000) + 600 = 19,950 + 600 = $20,550.

Question 8

Graph the pair of functions on the same plane. Use a dashed line for g(x).
-
A) 
B) 
C) 
D)

Accepted Answer

The answer of Graph the pair of functions on the...

Question 9

Solve the problem.
-Suppose a car rental company charges $134 for the first day and $84 for each additional or partial day. Let S(x) represent the cost of renting a car for x days. Find the value of S(4.5).
A) $512
B) $428
C) $378
D) $470

Accepted Answer

The cost for the first day is $134, and for each additional day, it is $84. For 4.5 days, the cost is $134 + (3.5 * $84) = $134 + $294 = $428. However, since the 0.5 day is considered a full additional day, we add another $84, making the total $428 + $84 = $512.

Question 10

Solve the problem.
-Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x).
A) 
B)

Accepted Answer

The answer of Solve the problem.
-Assume it costs 25 cents...

Question 11

Graph the pair of functions on the same plane. Use a dashed line for g(x).
-
A) 
B) 
C) 
D)

Accepted Answer

The answer of Graph the pair of functions on the...

Question 12

Solve the problem.
-The function  gives the approximate total earnings of a company, in millions of dollars, where x = 0 corresponds to 1996, x = 1 corresponds to 1997, and so on. This model is valid
For the years from 1996 to 2000. Determine the earnings for 1998. Round to the nearest hundredth when
Necessary.
A) $1.43 million
B) $1.19 million
C) $1.63 million
D) $1.39 million

Accepted Answer

The answer of Solve the problem.
-The function  gives the...

Question 13

Sketch a graph to represent the situation described.
-Janice jogged twice around a circular race track, which took her 4 minutes, then jogged to the center of the track and rested for 4 minutes before walking home slowly at a constant rate, which took her 12 minutes. Sketch a
Graph of her distance from the center of the race track as a function of time. Assume that the route she takes
Home is a straight line from the center of the race track. 
A) 
B) 
C) 
D)

Accepted Answer

The answer of Sketch a graph to represent the situation...

Question 14

Use the minimum and maximum features of a graphing calculator to find approximately the intervals on which the
function is increasing or decreasing. Round your values to two decimal places, if necessary.
-y = -  - 4x + 1
A)  , inc 
B)  , dec 
C)  , dec 
D)  , dec

Accepted Answer

The answer of Use the minimum and maximum features of...

Question 15

Graph the pair of functions on the same plane. Use a dashed line for g(x).
-
A) 
B) 
C) 
D)

Accepted Answer

The answer of Graph the pair of functions on the...

Question 16

Solve the problem.
-A salesperson gets a commission of $1600 for the first $10,000 of sales, and then $800 for each additional $10,000 or partial of sales. Let S(x) represent the commission on x dollars of sales. Find the value of S(75,000).
A) $7600
B) $6000
C) $7200
D) $6800

Accepted Answer

The answer of Solve the problem.
-A salesperson gets a commission...

Question 17

Solve the problem.
-A rectangular box with volume 188 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the
Base. Express the cost of the box as a function of x. Give the function and state its domain.
A) 
B) 
C) 
D)

Accepted Answer

The answer of Solve the problem.
-A rectangular box with volume...

Question 18

Sketch a graph to represent the situation described.
-Subscriptions to a magazine fell rapidly during the first three months of the year 2000. During the next three months, subscriptions continued to fall but more and more slowly. After that, subscriptions were constant for
Two months, and then for the next two months subscriptions rose again, very slowly at first and then more
Quickly. 
A) 
B) 
C) 
D)

Accepted Answer

The answer of Sketch a graph to represent the situation...

Question 19

Use the minimum and maximum features of a graphing calculator to find approximately the intervals on which the
function is increasing or decreasing. Round your values to two decimal places, if necessary.
-y =  - 10
A) 
B) 
C) 
D)

Accepted Answer

The answer of Use the minimum and maximum features of...

Question 20

Use the minimum and maximum features of a graphing calculator to find approximately the intervals on which the
function is increasing or decreasing. Round your values to two decimal places, if necessary.
-y =  + 18
A) 
B) 
C) 
D)

Accepted Answer

The answer of Use the minimum and maximum features of...

Quiz 2: Functions and Graphs

Graph the pair of functions on the same plane. Use a dashed line for g(x) . -

Graph the pair of functions on the same plane. Use a dashed line for g(x) . -

Solve the problem. -Suppose a life insurance policy costs $16 for the first unit of coverage and then $4 for each additional unit of coverage. Let C(x) be the cost for insurance of x units of coverage. What will 10 units of coverage cost?

Solve the problem. -A video rental company charges $3 for the first day, and $2 for each additional day, for renting video tape. Use the greatest integer function and write an expression for renting a video tape for x days.

Graph the pair of functions on the same plane. Use a dashed line for g(x) . -

Graph the pair of functions on the same plane. Use a dashed line for g(x) . -

Solve the problem. -Employees of a publishing company received an increase in salary of 5% plus a bonus of $600. Let S(x) represent the new salary in terms of the previous salary x. Find the value of S(19,000) .

Graph the pair of functions on the same plane. Use a dashed line for g(x) . -

Solve the problem. -Suppose a car rental company charges $134 for the first day and $84 for each additional or partial day. Let S(x) represent the cost of renting a car for x days. Find the value of S(4.5) .

Solve the problem. -Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x) .

Graph the pair of functions on the same plane. Use a dashed line for g(x) . -

Use the minimum and maximum features of a graphing calculator to find approximately the intervals on which the function is increasing or decreasing. Round your values to two decimal places, if necessary. -y = - - 4x + 1

Graph the pair of functions on the same plane. Use a dashed line for g(x) . -

Solve the problem. -A salesperson gets a commission of $1600 for the first $10,000 of sales, and then $800 for each additional $10,000 or partial of sales. Let S(x) represent the commission on x dollars of sales. Find the value of S(75,000) .

Use the minimum and maximum features of a graphing calculator to find approximately the intervals on which the function is increasing or decreasing. Round your values to two decimal places, if necessary. -y = - 10

Use the minimum and maximum features of a graphing calculator to find approximately the intervals on which the function is increasing or decreasing. Round your values to two decimal places, if necessary. -y = + 18