Fall Semester Exam

Front

What is the commutative property of addition?

Back

The commutative property of addition states that changing the order of the addends does not change the sum. In mathematical terms, it is expressed as: a + b = b + a.

Front

What does 'At Most' mean in mathematical terms?

Back

'At Most' means that the value can be equal to or less than a certain number. For example, 'At Most 4 sandwiches' translates to x ≤ 4.

Front

When do you use a closed circle on a graph for an inequality?

Back

A closed circle is used on a graph for an inequality when the inequality includes 'greater than or equal to (≥)' or 'less than or equal to (≤)'. This indicates that the endpoint is included in the solution.

Front

Expand the expression using the distributive property: -4(2h + 3)

Back

Using the distributive property, -4(2h + 3) expands to -8h - 12.

Front

Identify the constant(s) in the expression: -4a + 6 - a + 3

Back

The constants in the expression are 6 and 3.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by each term inside a set of parentheses.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, greater than or equal to, or less than or equal to the other.

Front

What does it mean when an inequality is written as x > 4?

Back

The inequality x > 4 means that x can take any value greater than 4, but not equal to 4.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents an unknown value in mathematical expressions and equations.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations without an equality sign, while an equation is a statement that two expressions are equal, indicated by an equality sign.