State the largest possible domain and the corresponding range for the following function: $y=\frac{2}{5}x+12$.

State the largest possible domain and the corresponding range for the following function: $y=2x^2$.

State the largest possible domain and the corresponding range for the following function: $y=x^2+5$.

State the largest possible domain and the corresponding range for the following function: $y=3x^2-3$.

State the largest possible domain and the corresponding range for the following function: $y=\frac{32}{x}$.

State the largest possible domain and the corresponding range for the following function: $y=\frac{15}{2x}$.

State the largest possible domain and the corresponding range for the following function: $y=\frac{1}{x+1}$.

State the largest possible domain and the corresponding range for the following function: $y=\frac{1}{x}+1$.

Use the vertical line test to determine whether the following graph is a function or not. Explain your answer.