Write the Word or Phrase That Best Completes Each Statement $\mathrm { a } = 3$

Short Answer

Write the word or phrase that best completes each statement or answers the question.
-Paul notes that if $\mathrm { a } = 3$ and $\mathrm { b } = - 3$ , then $\frac { \mathrm { a } } { \mathrm { b } } = \frac { \mathrm { b } } { \mathrm { a } } = - 1$ . He concludes that for any real numbers $a$ and $b , \frac { a } { b } = \frac { b } { a }$ . Do you agree with his reasoning? If not, why not?