20050401
5-9-10
Graphing a Recursion Formula
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Example Generate a number table from recursion between two terms as
expressed by
an+1 = 2an+1, with an initial term of a1 = 1, as n changes
in value from 1 to 6. Use the table values to draw a line graph.
Use the following V-Window settings.
Xmin = 0, Xmax = 6, Xscale = 1
Ymin = –15, Ymax = 65, Yscale = 5
Procedure
1 m
RECUR
2 !3(V-WIN) awgwbwc
-bfwgfwfwJ
3 !m(SET UP)ccc1(T+G)J
4 3(TYPE)2(an+1)c2(an)+bw
5 5(SET)2(a1)bwgwbwJ
6 1(SEL+S)f2( )J
7 6(TABL)
8 5(G
•
CON)
Result Screen
#You can make the number table active by
pressing K1(CHNG) or A.
#After drawing a graph, you can return to the
number table screen by pressing !6(G↔T)
or A.
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