9
QuizMultiple Choice

Adding and Subtracting Rational Expressions — Quiz

Question 9 • Algebra: Concepts and Connections

What is the value of the rational expression the fraction with numerator 2 x minus 1 and denominator x plus 5 when x is equal to 0 ?

Answer
A
negative 1 fifth
B
0
C
1 fifth
D
undefined

Explanation

Substitute x = 0 into (2x − 1)/(x + 5): the numerator is 2(0) − 1 = −1, and the denominator is 0 + 5 = 5. The value is −1/5, so the correct choice is negative one fifth.

AI-written and checked against the verified answer.

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