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Swokowski and Cole - Precalculus 13/e (Homework)

James Finch

Math - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 8 / 11

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

Last Saved : n/a Saving...  ()

Ask Your Teacher Print Assignment
Question
Points
1 2 3 4 5 6
2/2 1/1 0/2 3/3 2/2 0/1
Total
8/11 (72.7%)

  • Instructions

    Precalculus: Functions and Graphs, 13th Edition, by Earl Swokowski and Jeffery Cole and published by Cengage Learning, retains the features that have made it so popular: clear exposition and diverse, applications-rich examples and exercises. The excellent, time-tested problems have been widely praised for their consistency and appropriate level of difficulty for precalculus students. Mathematically sound, Precalculus: Functions and Graphs effectively prepares students for further courses in mathematics.

    The WebAssign enhancement to this textbook, which includes an interactive eBook, is a fully customizable online solution that empowers students to learn, not just do homework. Insightful tools save time and highlight exactly where students are struggling. Students get an engaging experience, instant feedback, and better outcomes. A total win-win!

    Question 1 features a prompt describing the needed answer format.

    Question 2 highlights randomized values, allowing students to experience describing different geometric figures, and includes a Watch It.

    Question 3 lets a student to enter coordinate points in a natural (x, y) form.

    Question 4 illustrates grading exact values with radicals and includes a prompt to direct the student to enter values in order or enter DNE.

    Question 5 utilizes WebAssign's mathPad to enter the answer, and contains equation grading.

    Question 6 contains an image with randomized expressions, creating a seamless experience for the student to calculate distance between a parabola and a line. It also includes a Watch It. 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. 2/2 points  |  Previous Answers SwokPreCalc13 2.1.009. My Notes
Question Part
Points
Submissions Used
1 2
1/1 1/1
2/100 2/100
Total
2/2
 
Consider the following points.
A(7, −7),    B(9, 4)
(a) Find the distance d(A, B) between A and B. (Round your answer to two decimal places.)
d(A, B) = Correct: Your answer is correct. seenKey

11.18

(b) Find the midpoint of the segment AB.
(x, y) = 
8,−32​
Correct: Your answer is correct. webMathematica generated answer key
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2. 1/1 points  |  Previous Answers SwokPreCalc13 2.1.018. My Notes
Question Part
Points
Submissions Used
1
1/1
1/100
Total
1/1
 
Which best describes the figure with vertices
A(−4, −3), B(0, −2), C(−1, 6), and D(−5, 5)?

     Correct: Your answer is correct.

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3. 0/2 points  |  Previous Answers SwokPreCalc13 2.1.032.MI. My Notes
Question Part
Points
Submissions Used
1 2
0/1 0/1
1/100 1/100
Total
0/2
 
Find all points with coordinates of the form (a, a) that are a distance 12 from P(−4, 8).
(x, y) = 
2−√52,2−√52
Incorrect: Your answer is incorrect. webMathematica generated answer key
 
 (smaller x-value)
(x, y) = 
2+√52,2+√52
Incorrect: Your answer is incorrect. webMathematica generated answer key
 
 (larger x-value)

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4. 3/3 points  |  Previous Answers SwokPreCalc13 2.2.076. My Notes
Question Part
Points
Submissions Used
1 2 3
1/1 1/1 1/1
2/100 2/100 1/100
Total
3/3
 
Consider the following circle. (If an answer does not exist, enter DNE.)
x2 + y2 − 10x + 5y + 15 = 0
(a) Find the x-intercepts.
(x, y) =
5−√10,0
Correct: Your answer is correct. webMathematica generated answer key
(smaller x-value)
(x, y) =
5+√10,0
Correct: Your answer is correct. webMathematica generated answer key
(larger x-value)

(b) Find the y-intercept.
(x, y) =
DNE
Correct: Your answer is correct. DNE
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5. 2/2 points  |  Previous Answers SwokPreCalc13 2.4.082. My Notes
Question Part
Points
Submissions Used
1 2
1/1 1/1
1/100 1/100
Total
2/2
 
The figure illustrates the apparatus for a tightrope walker. Two poles are set y = 40 feet apart, but the point of attachment P for the rope is yet to be determined.
(a) Express the length L of the rope as a function of the distance x from P to the ground.
L(x) =
√(x−2)2+402
Correct: Your answer is correct. sqrt(1600+(x-2)^2)

(b) If the total walk is to be 60 feet, determine the distance from P to the ground. (Round your answer to one decimal place.)
Correct: Your answer is correct. seenKey

46.7

 ft
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6. 0/1 points  |  Previous Answers SwokPreCalc13 2.6.037. My Notes
Question Part
Points
Submissions Used
1
0/1
1/100
Total
0/1
 
Find the maximum vertical distance d between the parabola and the line for the green region.
d = Incorrect: Your answer is incorrect. seenKey

49/8
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