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Algebra
Graph f(x)=-x+4 if X<1; 2x+1 if x>=1
f
(
x
)
=
{
−
x
+
4
X
<
1
2
x
+
1
x
≥
1
f
(
x
)
=
{
-
x
+
4
X
<
1
2
x
+
1
x
≥
1
Step 1
Graph
.
f
(
x
)
=
{
−
x
+
4
X
<
1
2
x
+
1
x
≥
1
f
(
x
)
=
{
-
x
+
4
X
<
1
2
x
+
1
x
≥
1
Step 2
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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