A function’s graph is shown below.
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This is a graph of a function with a vertical asymptote at x=-2 and a horizontal asymptote at y=1. As its x value approaches negative infinity, its y value approaches y=1 from the bottom. As its x value approaches -2 from the left, its y value approaches negative infinity. As its x value approaches -2 from the right, its y value approaches positive infinity. As its x value approaches positive infinity, its y value approaches y=1 from the top.
Note that the function has a horizontal asymptote and a vertical asymptote.
Use interval notation to answer the following questions. Use upper case letter U to represent the “union” symbol in set notation.
The domain of this function is .
The range of this function is .

You can earn partial credit on this problem.