Algebra Chapter 1 Test Review

Front

What is an independent variable?

Back

An independent variable is a variable that is manipulated or changed in an experiment to test its effects on the dependent variable.

Front

In the context of a wedding reception, which variable is independent: amount of money earned or length of reception?

Back

Length of reception is the independent variable.

Front

What are coordinates?

Back

Coordinates are a set of values that show an exact position on a graph, typically represented as (x, y).

Front

What are the coordinates of Point C if given the options (0,-3), (-4,-6), (-6, -4), (4, -5)?

Back

The coordinates of Point C are (-6, -4).

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction or ratio of two integers.

Front

To which subset of real numbers does -2.57 belong?

Back

-2.57 belongs to the subset of rational numbers.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

Simplify the expression: -3(5 - 2y). What is the result?

Back

The result is 6y - 15.

Front

What is the first step in simplifying the expression -12 ÷ 6 (-3) + 8?

Back

The first step is division.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.