# Portland Community College | Portland, Oregon

### CCOG for ALM 111B Winter 2022

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Course Number:
ALM 111B
Course Title:
MTH 111 Lab - 1 Credit
Credit Hours:
1
Lecture Hours:
0
Lecture/Lab Hours:
0
Lab Hours:
30

#### Course Description

Provides an opportunity to practice and work towards a deeper understanding of individually chosen topics from College Algebra (MTH 111). Completion of this course does not meet prerequisite requirements for other courses. Audit available.

#### Addendum to Course Description

This class is not intended to be a study hall for students to work on MTH assignments. The time
needs to be spent working on material designated by your ALM instructor. If a student is co-
enrolled in an MTH class, then this may include targeted materials which are intended to
support the concepts being taught in that MTH class.

#### Intended Outcomes for the course

Upon completion of the course students should be able to:

• Perform appropriate college algebra computations in a variety of situations with and without a calculator.
• Apply college algebra problem solving strategies in limited contexts.
• Address college algebra problems with increased confidence.
• Demonstrate progression through mathematical learning objectives established and agreed upon between the student and instructor.

#### Course Activities and Design

Instructors may employ the use of worksheets, textbooks, online software, mini-lectures, and/or group work.

#### Outcome Assessment Strategies

Assessment shall include at least two of the following measures:

1. Active participation/effort

2. Personal program/portfolios

3. Individual student conference

4. Assignments

5. Pre/post evaluations

6. Tests/Quizzes

#### Course Content (Themes, Concepts, Issues and Skills)

Items from the course content may be chosen as appropriate for each student and some students may even work on content from other ALM courses as deemed appropriate by the instructor.

College Algebra (MTH 111) – (Taken from the MTH 111 CCOG)

Course Topics

1. Functions
2. Exponential Functions and Equations
3. Logarithmic Functions and Equations
4. Polynomial Functions
5. Rational Functions
6. Technology

Course Content

1. Explore and analyze functions represented in a variety of forms (numerically, symbolically, verbally and graphically).
1. Given a function in any form, identify and express understanding of the domain and range, the horizontal intercept(s), the vertical intercept, the asymptotes as appropriate, and the end behavior.
2. Given a function represented graphically, identify and express an understanding of the local and absolute extrema and the approximate intervals over which the function is increasing or decreasing and concave up or concave down as appropriate.
3. Construct and express understanding of new functions from functions represented in any form.
1. Evaluate and simplify the difference quotient.
2. Construct and express understanding of a sum, difference, product or quotient of two given functions.
3. Construct and express understanding of a composition of two given functions.
4. Construct and express understanding of the inverse of a given function.
5. Investigate and express understanding of the new functions in context of applications.
4. Investigate families of functions in any form within the context of transformations.
1. Shift, reflect and/or stretch a given function horizontally or vertically.
2. Investigate and express understanding of given transformations in context of applications.
3. Investigate and express understanding of the symmetry of even and odd functions.
2. Explore and analyze exponential functions represented in a variety of forms (numerically, symbolically, verbally and graphically) in context of applications.
1. Given an exponential function that is represented graphically, numerically or symbolically, express it in the other two forms.
2. Write the symbolic form of exponential functions represented in various forms.
1. Given two points from an exponential function, generate a model symbolically.
2. Given initial value and growth rate, generate a model symbolically.
3. Given a table of values, determine if the model is linear or exponential and generate an appropriate model symbolically.
4. Given the graph of the function, generate a model symbolically.
3. Solve exponential equations symbolically, distinguishing between exact and approximate solutions.
4. Investigate different forms of exponential functions including the following: $$f(t)=ab^{t}$$, $$g(t)=ae^{kt}$$, $$P(t)=P_0(1+\frac{r}{n})^{nt}$$, and $$A(t)=Pe^{rt}$$.
5. Solve a variety of applied problems involving exponential functions (such as radioactive decay, bacteria growth, population growth, and compound interest). All variables in applications shall be appropriately defined with units.
3. Explore and analyze logarithmic functions represented in a variety of forms (numerically, symbolically, verbally and graphically) in context of applications.
1. Express logarithmic functions, using a variety of bases in addition to $$e$$ and 10, as inverse functions of exponential functions represented in various forms.
2. Given a logarithmic function that is represented graphically, numerically or symbolically, the student should be able to express it in the other two forms.
3. Using properties of logarithms, including change of base, simplify logarithmic expressions and solve logarithmic equations graphically and symbolically, distinguishing between exact and approximate solutions.
4. Solve a variety of applied problems involving logarithmic functions (such as intensity of sound, earthquake intensity, and determining acidity of a solution by its pH). All variables in applications shall be appropriately defined with units.
4. Explore and analyze polynomial functions represented in a variety of forms (numerically, symbolically, verbally and graphically) in context of applications.
1. Investigate the end-behavior of power functions.
2. Given a polynomial function that is represented graphically, represent it symbolically
3. Given a polynomial function in factored form, graph it by hand.
4. Distinguish the relationship between zeros, roots, solutions and the horizontal-intercepts of a polynomial function.
5. Find and estimate zeros of a polynomial that is represented in a variety of forms.
1. Distinguish between exact and approximate solutions, including complex solutions.
6. Sketch a polynomial function given the roots of the function, and the corresponding multiplicity of each root.
7. Solve a variety of applied problems involving polynomial functions. All variables in applications shall be appropriately defined with units.
5. Explore and analyze rational functions represented in a variety of forms (numerically, symbolically, verbally and graphically) in context of applications.
1. Given a rational function that is represented graphically, represent it symbolically.
2. Given a rational function in factored form, graph it by hand.
3. Find horizontal asymptotes, vertical asymptotes, and holes of rational functions.
4. Recognize oblique asymptotes graphically.
5. Understand the concept of limits in the context of asymptotes.
6. Solve a variety of applied problems involving rational functions. All variables in applications shall be appropriately defined with units.
6. Use technology to enhance understanding of concepts in this course.
1. Demonstrate the ability to:
1. Graph functions in an appropriate window.
2. Use zoom features.
3. Graphically find max/min values, zeros/roots, and intersection points without using the trace feature.
4. Evaluate logarithms of various bases.

Documentation Standards for Mathematics: All work in this course will be evaluated for your ability to meet the following writing objectives as well as for "mathematical content."

1. Every solution must be written in such a way that the question that was asked is clear simply by reading the submitted solution.
2. Any table or graph that appears in the original problem must also appear somewhere in your solution.
3. All graphs that appear in your solution must contain axis names and scales. All graphs must be accompanied by a figure number and caption. When the graph is referenced in your written work, the reference must be by figure number. Additionally, graphs for applied problems must have units on each axis and the explicit meaning of each axis must be self-apparent either by the axis names or by the figure caption.
4. All tables that appear in your solution must have well defined column headings as well as an assigned table number accompanied by a brief caption (description). When the table is referenced in your written work, the reference must be by table number.
5. A brief introduction to the problem is almost always appropriate.
6. In applied problems, all variables and constants must be defined.
7. If you used the graph or table feature of your calculator in the problem solving process, you must include the graph or table in your written solution.
8. If you used some other non-trivial feature of your calculator (e.g. SOLVER), you must state this in your solution.
9. All (relevant) information given in the problem must be stated somewhere in your solution.
10. A sentence that orients the reader to the purpose of the mathematics should usually precede symbol pushing.
11. Your conclusion shall not be encased in a box, but rather stated at the end of your solution in complete sentence form.
12. Line up your equal signs vertically.
13. If work is word-processed all mathematical symbols must be generated with a math equation editor.