1.1. Linear equations in one variable

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The questions in this section address a number of important math skills.

Use of a calculator is permitted for all questions. A reference sheet, calculator, and these directions can be accessed throughout the test.

Unless otherwise indicated:

• All variables and expressions represent real numbers.
• Figures provided are drawn to scale.
• All figures lie in a plane.
• The domain of a given function f is the set of all real numbers x for which f(x) is a real number.

For multiple-choice questions, solve each problem and choose the correct answer from the choices provided.

Each multiple-choice question has a single correct answer

For student-produced response questions, solve each problem and enter your answer as described below.

• If you find more than one correct answer, enter only one answer.
• You can enter up to 5 characters for a positive answer and up to 6 characters (including the negative sign) for a negative answer.
• If your answer is a fraction that doesn't fit in the provided space, enter the decimal equivalent.
• If your answer is a decimal that doesn't fit in the provided space, enter it by truncating or rounding at the fourth digit.
• If your answer is a mixed number (such as 3½), enter it as an improper fraction (7/2) or its decimal equivalent (3.5).

• Don't enter symbols such as a percent sign, comma, or dollar sign.

Example 1: 3.5

Acceptable ways to enter the answer:

3.5

3.50

7/2

3½

3 1/2

Unacceptable (will NOT receive credit):

31/2

Example 2: 2/3

Acceptable ways to enter the answer:

2/3

.6666

.6667

0.666

0.667

Unacceptable (will NOT receive credit):

0.66

.66

0.67

.67

Example 3: −1/3

Acceptable ways to enter the answer:

-1/3

-.3333

Unacceptable (will NOT receive credit):

-0.33

-.33

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