1. You have the following function given in the problem:
 h(x) = (0.5)x -9
 2. As you can see, the function has the form f(x)=mx+b, therefore, the function h(x) = (0.5)x -9 is known as "linear function".
 3. When you graph it, you obtain a line.
 -The domain of the function is:
 R( All the real numbers)
 -The range of the function is:
 R (All the real numbers) 
 - h(x) = (0.5)x -9 is asymptotic to h(x) = (0.5)x -9