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Byju's Answer
Standard VIII
Mathematics
Graphical representation of a linear equation in 2 variables
The equation ...
Question
The equation
y
=
m
x
represents ___ ;
where,
(
m
≠
0
)
.
A
a line parallel to x-axis
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B
a line parallel to y-axis
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C
a line passing through the origin
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D
a line cutting x-axis at the point
(
m
,
0
)
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Solution
The correct option is
C
a line passing through the origin
Given equation:
y
=
m
x
Substituting
x
=
0
,
y
=
m
×
0
=
0
So, if x = 0, then y = 0.
i.e,
(
0
,
0
)
is a point on the line.
Therefore, the line passes through the origin.
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Similar questions
Q.
x + 3 = 0 is the equation of a line
(a) parallel to the x-axis and passing through (
−3, 0
)
(b) parallel to the y-axis and passing through (
−3, 0
)
(c) parallel to the y-axis and passing through (0,
−3
)
(d) None of these
Q.
The equation
y
=
m
x
represents ___ ;
where,
(
m
≠
0
)
.
Q.
The equation
y
=
m
x
represents a line passing through origin;
where,
(
m
≠
0
)
.
Q.
Find the equation of line which passes through a point where line given by
x
−
1
−
1
=
y
−
2
3
=
z
−
4
6
cuts the x-axis and parallel to the line
x
2
=
y
+
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3
=
z
−
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Q.
The equation
(
y
–
1
)
=
m
(
x
–
2
)
represents a family of lines passing through
(
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,
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)
.
But this equation does not include the line
x
–
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=
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,
since the slope of the line is not defined. A line
y
=
m
x
through
(
0
,
0
)
cuts the lines
x
+
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=
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and
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+
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=
5
at two distinct points A and B respectively.
A
B
=
d
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