Sharp EL-9900 EL9900 Operation Manual - Page 81

Draw the tangent line to a function at a given point.

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TANGENT LINES Draw the tangent line to a function at a given point. 1. To draw the tangent line on a displayed graph, you must first enter the graph for Y1. Enter the function f(x) = x3 - x2 + 1 for Y1 by pressing Y= CL X/θ/T/n ab 3 - X/θ/T/n x2 + 1 ENTER . 2. Graph the function by pressing ZOOM A (ZOOM) 7 (Dec). ▼ ▼ 3. Draw the tangent line at x = 1 by pressing 2ndF DRAW A (DRAW) 5 (T_line(), move the tracer right to x =1 by pressing repeatedly, and then press ENTER . 6 Advanced Keyboard/CALCULUS USING THE SHARP EL-9900 Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.

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6
Advanced Keyboard/CALCULUS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation.
Permission is granted to photocopy for educational use only.
Draw the tangent line to a function at a given point.
1.
To draw the tangent line on a displayed graph, you must first enter the
graph for Y1.
Enter the function
f
(
x
) =
x
3
–
x
2
+ 1 for Y1 by pressing
Y=
CL
X/
θ
/T/
n
a
b
3
–
X/
θ
/T/
n
x
2
+
1
ENTER
.
2.
Graph the function by pressing
ZOOM
A
(ZOOM)
7
(Dec)
.
3.
Draw the tangent line at
x
= 1 by pressing
2ndF
DRAW
A
(DRAW)
5
(T_line
(
)
, move the tracer right to
x
=1 by pressing
repeatedly,
and then press
ENTER
.
TANGENT LINES
▼
▼