Solving A System Of Nonlinear Equations - Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book

5. Press r † † to move to
value of .
Y
When you trace, you can see that Y=1 indicates that Y4<Y5 is true and that Y=0 indicates that
Y4<Y5 is false.
6. Press o. Turn off
7. Press r.
Notice that the values of
intervals of the graph where Y4<Y5 because intervals that are false are multiplied by 0
† †
(Y6 Y4 and Y6 Y5)

Solving a System of Nonlinear Equations

Problem
Using a graph, solve the equation x
equations and two unknowns: y = x
places displayed on the graph and use y /
Procedure
1. Press z. Select the default mode settings. Press o. Turn off all functions and stat plots.
Enter the functions.
. Then press | and ~ to trace the inequality, observing the
Y6
, , and . Enter equations to graph only the inequality.
Y4 Y5 Y6
and are zero where the inequality is false. You only see the
Y7 Y8
3
N2x=2cos(x). Stated another way, solve the system of two
3
N2x and y = 2cos(x). Use factors to control the decimal
ZOOM
to find an approximate solution.
5:intersect
Chapter 17: Activities 310