LINEAR FUNCTIONS Solving Linear Equations (Page 1 of 7)

The first method of solving a linear equation graphically is to set the equation equal to zero, and define the other side of the equation as a linear function. The solution to the equation will be the zero (x-intercept) of the function.

Let's solve 3x+4 = (1/3)(x-2) using this method. First set the equation equal to zero: 3x+4-(1/3)(x-2) = 0. Enter the expression on the left as a linear function Y1 and graph the function using a standard window.

 Y= key. (Clear any previous functions)

 3 X,T,theta,n key. Plus key. 4 Minus key. Left parenthesis key. X,T,theta,n key. Minus key.
 2 Right parenthesis key. Divide key. 3

 ZOOM key. 6: menu selection.

 Calculator screen image. Calculator screen image.
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