FOA Semester Exam Review_test bank questions

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What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an algebraic expression. For example, in the expression 7c + 8, the coefficient of c is 7.

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What does the term 'less than' indicate in mathematics?

Back

The term 'less than' indicates subtraction. For example, '5 less than x' can be written as x - 5.

Front

Evaluate the expression 7c - 3 when c = 4.

Back

When c = 4, the expression evaluates to 7(4) - 3 = 28 - 3 = 25.

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Back

Front

What is the solution to the one-step equation 2x = 70?

Back

Front

Define an algebraic expression.

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 3x + 5 is an algebraic expression.

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What is the difference between an equation and an expression?

Back

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

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What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

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What is the value of the expression 5x + 2 when x = 3?

Back

When x = 3, the expression evaluates to 5(3) + 2 = 15 + 2 = 17.

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What is the term for the number that is subtracted in a subtraction operation?

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The number that is subtracted is called the 'subtrahend'.