LOGARITHMIC FUNCTIONS Solving Logarithmic Equations (Page 1 of 4)

Let's solve the equation 4ln(x+1) = 6. We will use the intersection method for this example. Consider the expression on the left side of the equation to be the logarithmic function y = 4ln(x+1), and the right side of the equation to be the constant function y = 6. Then solving the equation is equivalent to finding the intersection point of the graphs of these functions.

Enter the left side of the equation as function Y1 and the right side as function Y2. Then graph both functions using a standard window.

 Y= key. (Clear any previous functions)

 4 LN key. X,T,theta,n key. Plus key. 1 Right parenthesis key. ENTER key.
 6

 ZOOM key. 6: menu selection.

 Calculator screen image. Calculator screen image.
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