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Swokowski and Cole - Precalculus 12/e (Homework)

James Finch

Math - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 2 / 17

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

Last Saved : n/a Saving...  ()

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Question
Points
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2/2 –/2 –/1 –/2 –/3 –/3 –/2 –/1 –/1
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2/17 (11.8%)

  • Instructions

    Create your course assignments by selecting questions from our bank of 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

    In this assignment we present several textbook question types found in Precalculus: Functions and Graphs 12/e by Earl Swokowski and Jeffery Cole, 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. 2/2 points  |  Previous Answers SwokPreCalc12 1.6.001. My Notes
Question Part
Points
Submissions Used
1 2
1/1 1/1
2/50 2/50
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2/2
 
Express the inequality as an interval.
x < −4
     Correct: Your answer is correct.

Sketch its graph.
Use the tools to enter your answer.
Created with Raphaël 2.1.0-10-8-6-4-20246810
Created with Raphaël 2.1.0

NO SOLUTION

Help
Correct: Your answer is correct.
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2. –/2 points SwokPreCalc12 2.1.009. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
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–/2
 
Consider the following points.
A(3, −7),    B(9, 2)
(a) Find the distance d(A, B) between A and B. (Round your answer to two decimal places.)
d(A, B) =

(b) Find the midpoint of the segment AB.
(x, y) = 
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3. –/1 points SwokPreCalc12 2.1.018. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
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–/1
 
Which best describes the figure with vertices
A(−3, −2), B(0, −2), C(0, 4), and D(−3, 4)?

    

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4. –/2 points SwokPreCalc12 2.1.030. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
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–/2
 
Find all points with coordinates of the form (a, a) that are a distance 8 from P(−7, 1).
(x, y) = 
 
 (smaller x-value)
(x, y) = 
 
 (larger x-value)

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5. –/3 points SwokPreCalc12 2.2.070. My Notes
Question Part
Points
Submissions Used
1 2 3
–/1 –/1 –/1
0/50 0/50 0/50
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–/3
 
Consider the following circle. (If an answer does not exist, enter DNE.)
x2 + y2 − 12x + 3y + 18 = 0
(a) Find the x-intercepts.
(x, y) =
(smaller x-value)
(x, y) =
(larger x-value)

(b) Find the y-intercept.
(x, y) =
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6. –/3 points SwokPreCalc12 2.3.043. My Notes
Question Part
Points
Submissions Used
1 2 3
–/1 –/1 –/1
0/50 0/50 0/50
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–/3
 
Use the slope-intercept form to find the slope m and y-intercept b of the given line.
5x − 4y = 16
m =
b =

Sketch its graph.
No Solution
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Clear Graph
Delete Layer
Fill

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  • After you add an object to the graph you can use Graph Layers to view and edit its properties.
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7. –/2 points SwokPreCalc12 2.4.076. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
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–/2
 
The figure illustrates the apparatus for a tightrope walker. Two poles are set y = 50 feet apart, but the point of attachment P for the rope is yet to be determined.
(a) Express the length L of the rope in terms of the distance x from P to the ground.


(b) If the total walk is to be 75 feet, determine the distance from P to the ground. (Round your answer to one decimal place.)
ft
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8. –/1 points SwokPreCalc12 2.5.015. My Notes
Question Part
Points
Submissions Used
1
–/1
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–/1
 
Sketch, on the same coordinate plane, the graphs of f for the given values of c. (Make use of symmetry, shifting, stretching, compressing, or reflecting.)
f(x) = −x2 + c;    c = −5, 2, 5
No Solution
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Clear Graph
Delete Layer
Fill

Graph LayersToggle Open/Closed

  • After you add an object to the graph you can use Graph Layers to view and edit its properties.
Your work in question(s) will also be submitted or saved.
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9. –/1 points SwokPreCalc12 2.6.035. My Notes
Question Part
Points
Submissions Used
1
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0/50
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–/1
 
Find the maximum vertical distance d between the parabola and the line for the green region.
d =
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