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Larson - Algebra and Trigonometry 8/e (Homework)

James Finch

Math - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 16 / 35

Due : Sunday, January 27, 2030 00:00 EST

Last Saved : n/a Saving...  ()

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Question
Points
1 2 3 4 5 6 7 8 9 10 11
3/3 –/1 4/4 1/2 5/6 3/3 –/5 –/4 –/2 –/4 –/1
Total
16/35 (45.7%)

  • Instructions

    Create your course assignments by selecting questions from our bank of over 4800 end-of-section exercises, as well as enhanced interactive examples with videos.

    While doing their homework, students can link to the relevant interactive examples from the book and work through them again and again for additional practice before answering the question.

    Students can view and hear additional instruction through the 2-5 minute Watch It links. Students will also find helpful links to online excerpts from their textbook, tutorials, and videos.

    Read It - relevant textbook pages

    Watch It - videos of worked examples

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    In this assignment we present several textbook question types found in Chapter 2 on Functions and Their Graphs in Algebra and Trigonometry 8/e by Ron Larson published by Brooks/Cole. This demo assignment allows many submissions and allows you to try another version of the same question for practice wherever the problem has randomized values.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. 3/3 points  |  Previous Answers LarAT8 P.1.034. My Notes
Question Part
Points
Submissions Used
1 2 3
1/1 1/1 1/1
1/50 1/50 1/50
Total
3/3
 
Consider the following.
x < 5
(a) Give a verbal description of the subset of real numbers represented by the inequality.
     Correct: Your answer is correct.


(b) Sketch the subset on the real number line.
Use the tools to enter your answer.
Created with Raphaël 2.1.0012345678910
Created with Raphaël 2.1.0

NO SOLUTION

Help
Correct: Your answer is correct.


(c) State whether the interval is bounded or unbounded.
     Correct: Your answer is correct.

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2. –/1 points LarAT8 2.1.014. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
Total
–/1
 
Estimate the slope of the line.
WebAssign Plot

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3. 4/4 points  |  Previous Answers LarAT8 2.1.018. My Notes
Question Part
Points
Submissions Used
1 2 3 4
1/1 1/1 1/1 1/1
1/50 1/50 1/50 1/50
Total
4/4
 
Find the slope and y-intercept (if possible) of the equation of the line. (If an answer is undefined, enter UNDEFINED. Enter NONE if there is no y-intercept.)
y = x − 2
slope    
y-intercept    (x, y) = ( , )

Sketch the line.
No Solution
Help
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4. 1/2 points  |  Previous Answers LarAT8 2.1.058. My Notes
Question Part
Points
Submissions Used
1 2
1/1 0/1
2/50 2/50
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1/2
 
Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope m.
Point    Slope
(−7, −5)    m =  
4
5
y =
45​x+35​
Correct: Your answer is correct.

Sketch the line.
No Solution
Help
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Submission Data

Incorrect: Your answer is incorrect.

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5. 5/6 points  |  Previous Answers LarAT8 2.1.066.MI.SA. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5 6
1/1 1/1 1/1 1/1 1/1 –/1
1/50 1/50 1/50 1/50 1/50 0/50
Total
5/6
 
This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part.

Tutorial Exercise
Find the slope-intercept form of the equation of the line passing through the points. Sketch the line.
(8, 7),   (−8, −8)
Part 1 of 4
Compute the slope of the line.
0.9375 Correct: Your answer is correct. seenKey

15/16
Part 2 of 4
Using (8, 7) as your point, write the equation of the line in point-slope form.
y − 7 Correct: Your answer is correct. seenKey

7

 = 0.9375 Correct: Your answer is correct. seenKey

15/16

 (x − 8 Correct: Your answer is correct. seenKey

8

 )
Part 3 of 4
Rearrange the equation from the previous step into slope-intercept form.
y =
$$0.9375x−0.5
Correct: Your answer is correct. (15)/(16)x - 1/2
Part 4 of 4
Sketch the line.
No Solution
Help
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6. 3/3 points  |  Previous Answers LarAT8 2.2.038.MI. My Notes
Question Part
Points
Submissions Used
1 2 3
1/1 1/1 1/1
1/50 1/50 1/50
Total
3/3
 
Evaluate the function at each specified value of the independent variable and simplify. (If an answer is undefined, enter UNDEFINED.)
g(y) = 5 − 2y
(a)    
g(0) = Correct: Your answer is correct.
(b)    
g
5
2
 = Correct: Your answer is correct.
(c)    
g(s + 1) =
3−2s
Correct: Your answer is correct.

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7. –/5 points LarAT8 2.2.054. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5
–/1 –/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50 0/50
Total
–/5
 
Complete the table.
g(x) = 
x − 4
 
x 4 5 6 7 8
g(x)

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8. –/4 points LarAT8 2.2.089. My Notes
Question Part
Points
Submissions Used
1 2 3 4
–/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50
Total
–/4
 
An open box of maximum volume is to be made from a square piece of material, 24 centimeters on a side, by cutting equal squares from the corners and turning up the sides as shown below.
(a) The table shows the volume V (in cubic centimeters) of the box for various heights x (in centimeters). Use the table to estimate the maximum volume.
Height, x 1 2 3 4 5 6
Volume, V 484 800 972 1024 980 864

cubic centimeters

(b) Plot the points (x, V) from the table in part (a). Does the relation defined by the ordered pairs represent V as a function of x?
    

(c) If V is a function of x, write the function. (If V is not a function of x, enter NONE.)
V =

Determine the domain of the function.
    

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9. –/2 points LarAT8 2.3.024.MI. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
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–/2
 
Find the zeros of the function algebraically.
f(x) = 5x2 + 21x − 20
x = (smaller value)
x = (larger value)

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10. –/4 points LarAT8 2.4.046. My Notes
Question Part
Points
Submissions Used
1 2 3 4
–/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50
Total
–/4
 
Evaluate the function for the indicated values.
f(x) = 8
x
 + 3
(a)    f(0)


(b)    f(-2.2)


(c)    f(1)


(d)   
f 
 
5
3

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11. –/1 points LarAT8 2.5.056.MI. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
Total
–/1
 
Write an equation for the function that is described by the given characteristics.
The shape of f(x) = x2, but moved four units to the left, nine units upward, and reflected in the x-axis
g(x) =

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