TI-83 Plus Draw Instructions 212
Chapter 8:Draw Instructions

Getting Started: Drawing a Tangent Line

Getting Started is a fast-paced introduction. Read the chapter for details.
Suppose you want to find the equation of the tangent line at X = ‡2/2 for the
function Y = sin(X).
Before you begin, select Radian and Func mode
from the mode screen, if necessary.
1. Press o to display the Y= editor. Press ˜
„ ¤ to store sin(X) in Y1.
2. Press q 7 to select 7:ZTrig, which graphs
the equation in the Zoom Trig window.