LOGARITHMIC FUNCTIONS Graphing And Analysis (Page 8 of 8)

Now let's graph the natural logarithmic function f(x) = ln(x). Enter this function as Y1. Use the window shown to graph the function.

Y= key. CLEAR key.

LN key. X,T,theta,n key. Right parenthesis key.

 Calculator screen image.
WINDOW key....

GRAPH key.

 Calculator screen image. Calculator screen image.

The domain of this function is all values of x greater than zero, or (0, ∞) in interval notation . There is a vertical asymptote at x = 0 (it coincides with the y-axis). The function is increasing on its entire domain.
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