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Perfection Learning - Precalculus, 1/e (Homework)

James Finch

Math - High School, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 14 / 15

Due : Thursday, August 29, 2019 19:00 EDT

Last Saved : n/a Saving...  ()

Print Assignment
Question
Points
1 2 3 4 5 6 7 8 9 10
–/5 –/1 –/1 –/1 –/1 –/1 –/2 –/1 –/1 –/1
Total
14/15 (93.3%)

  • Instructions

    Precalculus: Concepts and Applications, 1st edition, by Perfection Learning is designed with the rigor, problem solving, and applications needed for students to be successful in future mathematics courses and careers. The WebAssign component for this text offers links to an eBook, Practice and Review questions, and worked out solutions for select questions.

    Question 1 is a multi-part question which demonstrates the grading used for some basic skills; the second part uses ordered pair grading and the third part uses equation grading. Try answering with any equation equivalent to the axis of symmetry.

    Questions 2 and 3 feature list grading and the corresponding prompt. Compared to the ordered pair grading in Question 1, notice that this list grading does not enforce order.

    Question 4 showcases grading for complex numbers and enforces simplification.

    Question 5 gives the student a clear graph with randomized functions so different students will have different problems.

    Question 6 demonstrates grading for partial fraction decomposition.

    Question 7 utilizes WebAssign's interval grading for a question regarding domain and range. Notice the prompt that makes the answer format clear to students.

    Question 8 features grading that enforces simplification of trigonometric expressions.

    Question 9 asks for the sum of two vectors. With the calcPad, the students can use arrows or bolding to signify vector notation.

    Question 10 showcases matrix grading. Try to increase or decrease the dimensions of the given answer field matrix using the adjacent arrows. 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. –/5 points PLPreCalc1 1.1.010. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5
–/1 –/1 –/1 –/1 –/1
0/100 0/100 0/100 0/100 0/100
Total
–/5
 
In the quadratic function,
y(x) = 3x2 − x + 1,
 find the values of a, b, and c.
a = (No Response) b = (No Response) c = (No Response)
Find the coordinates of the vertex.
(x, y) = 
(No Response)
Find the equation for the axis of symmetry.
(No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
2. –/1 points PLPreCalc1 1.2.006. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Solve the equation
20x + 7 = 3x2
 by factoring. (Enter your answers as a comma-separated list.)
x = (No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
3. –/1 points PLPreCalc1 1.2.012. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
List all of the possible rational zeros of the function
h(x) = 2x5 + 4x2 − 5.
 (Enter your answers as a comma-separated list.)
x = (No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
4. –/1 points PLPreCalc1 1.3.008. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Simplify the expression. Write your answer in
a + bi
 form.
(15 + 8i)(−4 − 2i)
(No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
5. –/1 points PLPreCalc1 2.1.019. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Give the equation of the parent function shown in the graph.
WebAssign Plot
y = (No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
6. –/1 points PLPreCalc1 2.3.023. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Find the partial fraction decomposition.
7x − 3
x2 + 7x + 6
(No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
7. –/2 points PLPreCalc1 3.1.010. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/100 0/100
Total
–/2
 
Give the domain and range of
f(g(x))
 if
f(x) = 5x + 3
 and
g(x) = x2.
 (Enter your answers using interval notation.)
Domain (No Response) Range (No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
8. –/1 points PLPreCalc1 5.1.013. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Write the given expression in terms of sine and cosine and express the result in simplest form.
sec(θ) + tan(θ)
(No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
9. –/1 points PLPreCalc1 8.2.003. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Algebraically sum the vectors. (Simplify your answer completely.)
e = i − 5j and f = 9i − 3j
e + f = (No Response)

Additional Materials

Viewing Saved Work Revert to Last Response
10. –/1 points PLPreCalc1 9.3.007. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Use the following matrices.
D = 
591
42−7
, E = 
22
31
41
If a given product cannot be calculated, enter DNE in any cell of the matrix.
E · D

Additional Materials

Viewing Saved Work Revert to Last Response
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