LESSON 6

What is a rational expression?

• An expression with only integers.

• An expression that can be written as a ratio of two polynomials.

• An expression with a variable in the numerator only.

• An expression that always contains a radical.

Which of the following is NOT a rational expression?

• (x^2 + 3x + 2) / (x + 4)

• 1 / (3x^2)

• (sqrt(x) + 1) / (x^3 - 1)

• (x^2 + 4x - 3) / 2

What is the primary difference between a rational equation and a rational inequality?

• Rational equations involve only variables, while inequalities involve numbers.

• Rational equations use an equal sign, while inequalities use inequality symbols.

• Rational equations have only one solution, while inequalities have multiple solutions.

• Rational equations are always simpler than rational inequalities.

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What is a key characteristic of a rational function?

• It always contains an equal sign.

• It expresses a relationship between two variables (x and y).

• It involves only polynomial expressions.

• It must contain an inequality symbol.

What type of mathematical expression is 2x >= 7/(x+4)?

• Rational Function

• Rational Equation

• Rational Inequality

• None of these