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Byju's Answer
Standard IX
Mathematics
Graphical Representation of a Linear Equation in Two Variables
Construct gra...
Question
Construct graph of the following function:
y
=
{
4
x
−
1
,
if
x
<
0
√
4
x
−
x
2
,
if
x
≥
0
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Solution
Given function is
y
=
{
4
x
−
1
,
if
x
<
0
√
4
x
−
x
2
,
if
x
≥
0
4
x
−
x
2
is positive when
x
belongs to
[
0
,
4
)
Therefore, the function is not defined when
x
>
4
So, the function is defined when
0
<
x
<
4
and
x
<
0
Thus, the equations are
y
=
4
x
−
1
, if
x
<
0
y
=
√
4
x
−
x
2
, if
0
≤
x
<
4
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0
Similar questions
Q.
Construct graph of the following function:
y
=
{
1
−
√
1
−
x
2
,
if
x
≤
1
1
+
log
1
2
x
,
if
x
>
1
Q.
Graph the function
f
(
x
)
=
⎧
⎨
⎩
−
1
,
i
f
x
<
0
0
,
i
f
x
=
0
1
,
i
f
x
>
0
.
f
(
x
)
is defined for
Q.
Following function is continous at the point
x
=
0
f
(
x
)
=
{
2
x
−
1
,
i
f
x
<
0
2
x
+
1
,
i
f
x
≥
0.
Q.
If
f
(
x
)
=
⎧
⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪
⎨
⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪
⎩
1
−
cos
4
x
x
2
,
i
f
x
<
0
a
,
i
f
x
=
0
√
x
√
16
+
√
4
−
4
,
i
f
x
>
0
, then what value of
a
,
f
is continuous at
x
=
0
?
Q.
Show that the Signum function
f
:
R
→
R
, given by
f
(
x
)
=
⎧
⎨
⎩
1
,
i
f
x
>
0
0
,
i
f
x
=
0
−
1
,
i
f
x
<
0
is neither one-one nor onto.
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