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Class IX
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Chapter 4
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Quiz
Class IX
Chapter 4 : Mixed practice
10 questions
Question 1 of 10
Score:
0
/ 0
Which is a linear equation in two variables?
A
x
2
+
y
=
1
x^2 + y = 1
x
2
+
y
=
1
B
x
+
y
=
4
\sqrt{x} + y = 4
x
+
y
=
4
C
3
x
+
5
y
=
9
3x + 5y = 9
3
x
+
5
y
=
9
D
x
y
=
7
xy = 7
x
y
=
7
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