Question\begin{tabular}{|c|c|c|c|} \hline Q1 & \begin{tabular}{l} The curve of $\frac{y^{2}}{y+x}=1$ is symmetric about: \\ A) Origin \\ B) $x$-axis \end{tabular} & C) y-axis & D) Not symmetric \\ \hline Q2 & \begin{tabular}{l} $$\lim _{x \rightarrow+\infty} \frac{\sqrt{1+2 x^{2}}}{x+2}=$$ \\ A) $-\sqrt{2}$ \\ B) 2 \end{tabular} & C) $\sqrt{2}$ & D) -2 \\ \hline Q3 & \begin{tabular}{l} The function $f(x)=x^{2} \sin (x)$ is: \\ A) even \\ B) odd \end{tabular} & C) even and odd & D) neither \\ \hline Q4 & \begin{tabular}{l} If $f(x)=4+\frac{x}{x-1}$, then $f^{-1}(x)=$ \\ A) $\frac{2-x}{3-x}$ \\ B) $\frac{3-x}{4-x}$ \end{tabular} & C) $\frac{4-x}{5-x}$ & D) $\frac{5-x}{6-x}$ \\ \hline Q5 & \begin{tabular}{l} For all real numbers $x$, a function $f(x)$ satis \\ A) 5 \\ B) -5 \end{tabular} & \begin{tabular}{l} $$|f(x)+1| \leq \mid x$$ \\ C) -1 \end{tabular} & \begin{tabular}{l} 5, then $\lim _{x \rightarrow-5} f(x)$ \\ D) 1 \end{tabular} \\ \hline \end{tabular}