Question 1

The 1999 graduates of Bottom Line University all got great jobs. Their starting annual salaries are:
$36,000; $32,000; $42,000; $41,000; $40,000; $38,000; $60,000; $43,000; $52,000; and $2.3 million
(At 6'10'' "Hoops" Johnson is playing professional basketball.)
A) A headline in the alumni newsletter boasts "'1999 Graduates Highest Paid Yet. Salaries Average $_________" (Complete the headline.)
B) Is the mean or the median a better indication of what the graduates are typically making?

Accepted Answer

The answer of The 1999 graduates of Bottom Line University...

Question 2

In the graph below, y is a function of x.

Accepted Answer

A) True 
 B)False

Question 3

The following table gives values for a function y=f(x).

For what value(s) of x does f(x)=6 ?

Accepted Answer

A)  9 and 11 
B)  4 
C)  11 
D)  6

Question 4

Over what interval is the function concave down?
Write your answer in interval notation.

Accepted Answer

The answer of Over what interval is the function concave...

Question 5

Find the domain for this function. Express the domain in interval notation.

Accepted Answer

The answer of Find the domain for this function. Express...

Question 6

The area of a circle is described by the function  , where r is the radius of the circle. Find the area of a circle with radius 6.

Accepted Answer

A)   
B)   
C)   
D)  36

Question 7

Below is age data from a University of Massachusetts college algebra class.
 Which is the relative frequency of students whose ages are in the interval from 18-20? (rounded to 2 decimal places)

Accepted Answer

A)  30 
B)  3.33 
C)  0.30 
D)  0.17

Question 8

Consider the table giving values for variables s and t.

Determine which of the following best describes the relationship between s and t.

Accepted Answer

A)  t is a function of s 
B)  s is a function of t 
C)  both A and B 
D)  None of the above

Question 9

Solve for y as a function of x and rewrite using  notation.

Accepted Answer

A)   
B)   
C)   
D)

Question 10

Find the value that completes the ordered pair, (2,__).

Accepted Answer

The answer of Find the value that completes the ordered...

Question 11

The following grid shows the graph of the function,  .
  
Find the range of the function.

Accepted Answer

The answer of The following grid shows the graph of...

Question 12

Determine the domain of this graph. Express the answer in interval notation.

Accepted Answer

The answer of Determine the domain of this graph. Express...

Question 13

State the interval on which this graph is concave upward. State your answer in interval notation.

Accepted Answer

The answer of State the interval on which this graph...

Question 14

The following grid shows the graph of the function,  .

Find the range of the function.

Accepted Answer

A)   
B)   
C)

Question 15

Find the domain for this function. Express the domain in interval notation.

Accepted Answer

The answer of Find the domain for this function. Express...

Question 16

The following table gives the median salary of an employee at Gossnell, Inc. for various years of seniority.
  
Which variable would be used as the output of the function?

Accepted Answer

The answer of The following table gives the median salary...

Question 17

Select all of the following ordered pairs that satisfy the equation.

Accepted Answer

A)  (-1,-1) 
B)  (-2,-17) 
C)  (2,-17) 
D)  (-3,-23) 
E)  (1,7)

Question 18

The following table gives values for a function y=f(x).
  
Evaluate f(5).

Accepted Answer

The answer of The following table gives values for a...

Question 19

Given the graph of velocity as a function of time, choose the best graph to represent distance traveled as a function of time.

Accepted Answer

A) 
 
B) 
 
C) 
 
D)

Question 20

The frequency table below describes the age distribution of students in a college algebra class. Based on this information, estimate the largest possible value for the mean age of this class.

Which of the following is the largest possible mean?
Round your answers to 2 decimals if necessary.

Accepted Answer

A)  19.00 
B)  20.00 
C)  19.5 
D)  18.5

Exam 1: An Introduction to Data and Functions

In the graph below, y is a function of x.

The following table gives values for a function y=f(x) . For what value(s) of x does f(x) =6 ?

Over what interval is the function concave down? Write your answer in interval notation.

Find the domain for this function. Express the domain in interval notation.

The area of a circle is described by the function , where r is the radius of the circle. Find the area of a circle with radius 6.

Below is age data from a University of Massachusetts college algebra class. Which is the relative frequency of students whose ages are in the interval from 18-20? (rounded to 2 decimal places)

Consider the table giving values for variables s and t. Determine which of the following best describes the relationship between s and t.

Solve for y as a function of x and rewrite using notation.

Find the value that completes the ordered pair, (2,__).

The following grid shows the graph of the function, . Find the range of the function.

Determine the domain of this graph. Express the answer in interval notation.

State the interval on which this graph is concave upward. State your answer in interval notation.

The following grid shows the graph of the function, . Find the range of the function.

Find the domain for this function. Express the domain in interval notation.

The following table gives the median salary of an employee at Gossnell, Inc. for various years of seniority. Which variable would be used as the output of the function?

Select all of the following ordered pairs that satisfy the equation.

The following table gives values for a function y=f(x). Evaluate f(5).

Given the graph of velocity as a function of time, choose the best graph to represent distance traveled as a function of time.

The frequency table below describes the age distribution of students in a college algebra class. Based on this information, estimate the largest possible value for the mean age of this class. Which of the following is the largest possible mean? Round your answers to 2 decimals if necessary.