Question

Someone, please explain this problem (need an answer ASAP)

Answer 1

`y=(1)/(81)`

Explanation:

Given equation:

`y=3^x`

Substitute x = -4 into the equation:

`\implies y=3^(-4)`

`\textsf{Apply exponent rule} \quad a^(-n)=(1)/(a^n):`

`\implies y=(1)/(3^4)`

Simplify:

`\implies y=(1)/(3*3*3*3)`

`\implies y=(1)/(9*3*3)`

`\implies y=(1)/(27*3)`

`\implies y=(1)/(81)`