1
2
3
4
5
−1
−2
−3
−4
−5
1
2
3
4
5
−1
0,0
–
o
+
←
↓
↑
→
f
(
x
)
=
a
x
a = 2.00
f
(
x
)
=
2.000
x
f
(
x
)
x = 1.00
(1.003, 2.005), gradient = 1.390