\text { Function } B: Z \rightarrow R \text { defined by } B(y)=\log _{200}\left(2 y^{2}+8\right) \text { is an onto function? } \text { Function } \left.\mathrm{A}: Z \rightarrow Z \text { defined by } \mathrm{A}(\mathrm{x})=\Gamma e^{(3 x+10) / 10}\right\rceil \bmod 8 \text { is a one-to-one function? }

Fig: 1

Fig: 2