Chapter 4 - Exponential and Logarithmic Functions - Section 4.3 Exponential Functions - 4.3 Assess Your Understanding - Page 306: 46

See graph. domain $(-\infty,\infty)$, range $(0,\infty)$, H.A. $y=0$.

Step 1. To obtain the graph of $f(x)=4(\frac{1}{3})^{x}$ from $y=(\frac{1}{3})^x$, stretch the curve vertically by a factor of 4. See graph. Step 2. We can determine the domain $(-\infty,\infty)$, range $(0,\infty)$, horizontal asymptote H.A. $y=0$.