Answer:
[tex] \frac{ {y}^{ - 5} }{x {}^{ - 3} } \\ [/tex]
when x is 2, y is -4
[tex] = \frac{ {( - 4)}^{5} }{ {2}^{ - 3} } \\ \\ = - 1024 \times {2}^{3} \\ = - 1024 \times 8 \\ = - 8192[/tex]
None of the objectives is right