LOGARITHMIC FUNCTIONS Graphing And Analysis (Page 7 of 8)

We can draw the vertical asymptote as well. The asymptote for this function is x = -2. Use the DRAW Vertical command from the Home screen. Enter the command, followed by the x-intercept of the vertical line desired.

 2nd QUIT key. CLEAR key.

 2nd DRAW key. 4: menu selection. Negation key. 2 ENTER key.

 Calculator screen image. Calculator screen image.

From the graph we can see that the domain of this function is all values of x greater than -2, or (-2, ∞) in interval notation. The function is decreasing on its entire domain.
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