2 Cumulative Test Prep
Tips For Success
Some problems require you to use direct variation to solve for an unknown quantity. Read the question below. Then follow the tips to answer the sample question.
Tip 1
Some problems give more information than you need. Decide what information you need to answer the question. A salad dressing recipe calls for
Tip 2
Use some of the information to find k, the constant of variation in y = kx.
Think It Through
The ratio that shows how the amount of buttermilk changes is
You can simplify this ratio.
Use
Let x represent the original amount of orange juice.
The correct answer is B.
Vocabulary Builder
As you solve test items, you must understand the meanings of mathematical terms. Match each term with its mathematical meaning.
| A. linear function | I. the set of all outputs, or y-coordinates, of a relation |
| B. direct variation | II. a transformation that shifts a graph horizontally, vertically, or both |
| C. range |
III. a function that can be written in the form
|
| D. translation |
IV. a function that can be written in the form y = kx,
|
Multiple Choice
Read each question. Then write the letter of the correct answer on your paper.
- Which of the following absolute value inequalities has no solutions in Quadrant IV?
-
- For which value of b would the equation
-
- 3
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- 6
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Table of Contents
- 5-1 Polynomial Functions
- 5-2 Polynomials, Linear Factors, and Zeros
- 5-3 Solving Polynomial Equations
- 5-4 Dividing Polynomials
- 5-5 Theorems About Roots of Polynomial Equations
- 5-6 The Fundamental Theorem of Algebra
- 5-7 The Binomial Theorem
- 5-8 Polynomial Models in the Real World
- 5-9 Transforming Polynomial Functions