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graph the logarithmic function that models the number of years, g(x), f…

Question

graph the logarithmic function that models the number of years, g(x), for the number of infected trees to reach a value of x.

Explanation:

Step1: Recall Logarithmic Function Form

A general logarithmic function is \( g(x)=\log_b(x) \) (or with transformations, but let's assume a basic form first, e.g., \( g(x)=\log(x) \) with base 10 or \( \ln(x) \) with base \( e \)). The domain of a logarithmic function is \( x > 0 \), and it has a vertical asymptote at \( x = 0 \).

Step2: Identify Key Points

For \( y = \log(x) \) (base 10):

  • When \( x = 1 \), \( y = 0 \) (since \( \log(1)=0 \)).
  • When \( x = 10 \), \( y = 1 \); when \( x=\frac{1}{10} \), \( y=-1 \), etc. For a natural log \( y = \ln(x) \), when \( x = e\approx2.718 \), \( y = 1 \); \( x = 1 \), \( y = 0 \).

Step3: Plot the Function

  1. Draw the vertical asymptote at \( x = 0 \) (dashed line, since it's not part of the graph).
  2. Plot the point \( (1, 0) \) (since \( \log(1)=0 \) for any base \( b>0, b

eq1 \)).

  1. For a base \( > 1 \), the function is increasing. So, as \( x \) increases from 0 to \( \infty \), \( y \) increases from \( -\infty \) to \( \infty \). For example, if we take base 10, plot \( (10, 1) \); if base \( e \), plot \( (e, 1) \approx(2.718, 1) \).
  2. Connect the points smoothly, approaching the vertical asymptote as \( x \to 0^+ \) (from the right side of \( x = 0 \)) and increasing slowly for \( x > 1 \), more steeply as \( x \) grows larger (but still slower than exponential).

Answer:

To graph the logarithmic function \( g(x)=\log_b(x) \) (e.g., base 10 or \( e \)):

  1. Draw vertical asymptote at \( x = 0 \).
  2. Plot \( (1, 0) \).
  3. For \( b > 1 \), plot another point (e.g., \( (b, 1) \)) and draw a smooth curve increasing from \( -\infty \) (near \( x = 0^+ \)) through \( (1, 0) \) to \( \infty \) as \( x \to \infty \).

(Note: Since the problem mentions "the number of years" and "infected trees", the function likely models growth/decay, so a base \( > 1 \) (growth) or \( 0 < b < 1 \) (decay) logarithmic function. The graph should follow the shape of a logarithmic curve with domain \( x > 0 \), passing through \( (1, 0) \), and asymptotic to \( x = 0 \).)