EXPONENTIAL FUNCTIONS Solving Exponential Equations (Page 1 of 6)

Let's solve the equation 1000e^(-4x) = 75. We will use the intersection method for this example. Consider the expression on the left side of the equation to be the exponential function y = 1000e^(-4x), and the right side of the equation to be the constant function y = 75. 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.

 Y= key. (Clear any previous functions)

 1000 2nd e to the x key. Negation key. 4 X,T,theta,n key. Right parenthesis key. ENTER key.
 75

 Calculator screen image.
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