CA4 Review Algebra

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What is 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 is a statement that two expressions are equal, indicated by the '=' sign. An expression does not have an '=' sign.

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What does it mean to solve an equation?

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To solve an equation means to find the value of the variable that makes the equation true.

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What is a variable in algebra?

Back

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

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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 two or more terms inside a set of parentheses.

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What is a coefficient?

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A coefficient is a numerical factor in a term of an algebraic expression. For example, in 4x, 4 is the coefficient.

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What is a constant in algebra?

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A constant is a fixed value that does not change. For example, in the expression 3x + 5, the number 5 is a constant.

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What does it mean to combine like terms?

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Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.

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What is a linear equation?

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A linear equation is an equation that makes a straight line when graphed. It has the form y = mx + b, where m is the slope and b is the y-intercept.

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What is the slope of a line?

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The slope of a line is a measure of its steepness, calculated as the rise over run (change in y over change in x).