Math Problem Statement

The coordinates of a point on the graph of the indicated​ function, shown to the​ right, are displayed at the bottom of the screen.

Write the logarithmic and exponential equations associated with the display.

-110 -3    3xY1=ln(X)

nothing

Upper X equals 2.95X=2.95

Upper Y equals 1.0818052Y=1.0818052

g left parenthesis x right parenthesis equals ln xg(x)=ln x

A coordinate system has a horizontal x-axis labeled from negative 1 to 10 in increments of 1 and a vertical y1=ln(x)-axis labeled from negative 3 to 3 in increments of 2. From right to left, a curve labeled g(x) = ln x falls at an increasing rate, passing through the points (10, 2.3), the plotted point marked with an X at (3, 1.1), and (1, 0). As x approaches 0 from the right, the curve approaches negative infinity. At the bottom of the screen X=2.95 and Y=1.0818052 are labeled. All coordinates are approximate.

Question content area bottom

Part 1

Write the logarithmic equation.

The logarithmic equation is

enter your response here.

Solution

Based on the description, the logarithmic equation associated with the graph is the natural logarithm function. Since the graph follows the curve of g(x)=ln(x)g(x) = \ln(x) and the coordinates at the bottom are X=2.95X = 2.95 and Y=1.0818052Y = 1.0818052, these values represent a point on the curve g(x)=ln(x)g(x) = \ln(x).

Thus, the logarithmic equation is: Y=ln(X)Y = \ln(X)

In this case, with X=2.95X = 2.95 and Y=1.0818052Y = 1.0818052, this satisfies the equation Y=ln(2.95)Y = \ln(2.95), which approximately equals 1.0818052.

Do you want any further details or have questions?

Here are 5 related questions:

  1. How is the natural logarithm ln(x)\ln(x) defined and what is its domain?
  2. Can you explain why the logarithmic function approaches negative infinity as xx approaches zero from the right?
  3. What is the inverse of the natural logarithm function?
  4. How would you differentiate g(x)=ln(x)g(x) = \ln(x) with respect to xx?
  5. Can logarithmic functions have negative xx-values?

Tip: Remember, the base of the natural logarithm is Euler's number e2.718e \approx 2.718.

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Math Problem Analysis

Mathematical Concepts

Logarithmic Functions
Exponential Functions
Natural Logarithms

Formulas

g(x) = ln(x)
Y = ln(X)
Inverse: e^Y = X

Theorems

Logarithmic and Exponential Relationship
Inverse Function Theorem

Suitable Grade Level

Grades 10-12