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V. DRAW Menu
A. Tangent
In algebra and calculus, you will often need to find an equation of a tangent line to a curve at a particular point. The TI-83 will draw a tangent line and will give a good approximation of the equation of the tangent line.
Example: Find an equation of the tangent line to the function shown below at X=2.
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Enter the
function. |
Set a window.
Use ZDecimal. |
Graph with |
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Access tangent.
Use DRAW 5. |
Enter a value
of X. |
Press ENTER.
Tangent will be drawn. |
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To delete the tangent line, enter
1.