The graph of
f(x)
is shown below. Estimate and list the value of
x
where
f(x)
has a horizontal tangent.
1
2
3
4
5
6
7
8
9
10
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
1
2
3
4
5
-1
-2
-3
-4
-5
x
=
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Enter your answer as a list of integer or decimal numbers separated with commas: Examples: -4, 3, 2.5172
Enter DNE for Does Not Exist, oo for Infinity