Logarithmic Graph E291B1
1. The problem asks to sketch the graph of the function $$y = 4\ln(2x - 4)$$.
2. The natural logarithm function $$\ln(x)$$ is defined only for $$x > 0$$, so the domain of $$y = 4\ln(2x - 4)$$ is where $$2x - 4 > 0$$.
3. Solve the inequality for the domain:
$$
2x - 4 > 0 \\
2x > 4 \\
x > 2
$$
So the domain is $$x > 2$$.
4. The function is a vertical stretch of the basic logarithm function by a factor of 4.
5. The vertical asymptote occurs where the argument of the logarithm is zero:
$$
2x - 4 = 0 \\
x = 2
$$
So the vertical asymptote is the line $$x = 2$$.
6. To sketch the graph, plot some points for $$x > 2$$:
- At $$x=3$$:
$$y = 4\ln(2(3) - 4) = 4\ln(6 - 4) = 4\ln(2) \approx 4 \times 0.693 = 2.772$$
- At $$x=4$$:
$$y = 4\ln(2(4) - 4) = 4\ln(8 - 4) = 4\ln(4) \approx 4 \times 1.386 = 5.544$$
7. The graph approaches negative infinity as $$x$$ approaches 2 from the right.
8. The graph increases slowly for larger $$x$$ values due to the logarithmic nature.
Final answer: The graph of $$y = 4\ln(2x - 4)$$ has domain $$x > 2$$, vertical asymptote at $$x=2$$, and is a vertically stretched logarithmic curve increasing slowly to the right.