Which represents all the values of x that make the rational expression 2x-4 over x-5 undefined?

Question

Derrick Conley

Mathematics

2 August, 10:37

Which represents all the values of x that make the rational expression 2x-4 over x-5 undefined?

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Answers (1)

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Judith Kent · Answer 1

A fraction is undefined when the denominator equals 0 so we do this:

x-5≥0

x≥5

This tells us that any number less than 5 will make the fraction undefined