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Find maximum and minimum values of
Graph Y
=
1
Zoom 6 for the standard window... [-10, 10]
Find the maximum value of
Press 2
Left Bound?
Right Bound?
Guess?
3
f x
( )
=
x
Find the minimum value of
Press 2
Left Bound?
Right Bound?
Guess?
3
f x
( )
=
x
f x
( )
3
2
x
−
x
−
5
x
−
3
.
f x
( )
nd
TRACE 4: maximum.
Move cursor to the left to get a y-coordinate that is less than
the relative max.
Press ENTER on
Move cursor to the right to get a y-coordinate that is less than the max.
Press ENTER on
Press ENTER.
2
−
x
−
5
x
−
3
has a relative maximum value of 0 at
See the table of values!
f x
( )
nd
TRACE 3: minimum.
Move cursor to the right to get a y-coordinate that is more than
the relative min.
Press ENTER on
Move cursor to the right to get a y-coordinate that is less than the max
Press ENTER on
Press ENTER.
2
−
x
−
5
x
−
3
has a relative minimum value of -9.481 at
3
2
=
x
−
x
−
5
x
−
x [-10, 10]
.
1
1
3
2
=
x
−
x
−
5
x
−
3
x
= −
1.489362
x
= −
0.4255319
3
2
=
x
−
x
−
5
x
−
3
x
=
0.63829787
x
=
2.3404255
3
.
:
y
= −
1.075089
.
y
= −
1.130472
.
x = −
1
.
:
y
= −
6.338856
.
y
= −
7.359824
.
x ≈
1.667
.
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