Translating Phrases to Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Front

How do you translate 'twice a number' into an algebraic expression?

Back

'Twice a number' translates to 2a, where 'a' represents the number.

Front

What does 'decreased by' indicate in an algebraic expression?

Back

'Decreased by' indicates subtraction. For example, 'four times a number decreased by 9' translates to 4b - 9.

Front

How do you express '12 more than a number' in algebraic form?

Back

'12 more than a number' translates to n + 12, where 'n' is the number.

Front

What is the algebraic expression for 'the sum of a number and 8'?

Back

'The sum of a number and 8' translates to a + 8, where 'a' is the number.

Front

How do you express 'the difference of 20 and p' in algebraic form?

Back

'The difference of 20 and p' translates to 20 - p.

Front

What is the role of variables in algebraic expressions?

Back

Variables represent unknown values and can change. They are typically denoted by letters such as a, b, or n.

Front

What does the term 'sum' refer to in algebra?

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'Sum' refers to the result of adding two or more numbers or expressions together.

Front

What does the term 'difference' refer to in algebra?

Back

'Difference' refers to the result of subtracting one number or expression from another.

Front

How do you identify the coefficient in an algebraic expression?

Back

The coefficient is the numerical factor that multiplies a variable. For example, in 4b, 4 is the coefficient.