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Select 1: abs( and the absolute value function will appear in Y
NOTE: If abs(
1.
, you forgot to press Y =
appears on your home screen rather than in Y
!
1
You should have the following on your screen:
Press X, T, θ, n to put the variable x after the abs( and finally press ). Hit ENTER.
In Y
, we put 4 to graph Y
= 4. Set the viewing window so Xmin = -6, Xmax = 6,
2
2
Xscl = 1, Ymin = 0, Ymax = 6, and Yscl = 1. Press graph and use INTERSECT twice to
obtain the solution -4 < x < 4 since the graph of Y
is below the graph of Y
in this
1
2
w
interval.
1.6 Lines
Square Screens
To get a square screen on the TI-83 press ZOOM and select option 5: ZSquare.
ZOOM
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