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Functions
easy
0:00.0
If
f
(
x
)
=
∣
x
−
4
∣
f(x) = |x - 4|
f
(
x
)
=
∣
x
−
4∣
, calculate
f
(
1
)
+
f
(
7
)
f(1) + f(7)
f
(
1
)
+
f
(
7
)
.
A
3
B
6
C
0
D
-6
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