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CBSE - Class 9 Mathematics Linear Equations in Two Variables Worksheet

EXERCISE 4.2

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(ii) $(2, 0)$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(i) $(0, 2)$

Write four solutions for each of the following equations:
(i) $2x + y = 7$

Find the value of $k$, if $x = 2$, $y = 1$ is a solution of the equation $2x + 3y = k$.

Write four solutions for each of the following equations:
(ii) $\pi x + y = 9$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(v) $(1, 1)$

Write four solutions for each of the following equations:
(iii) $x = 4y$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(iii) $(4, 0)$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(iv) $(\sqrt{2}, 4\sqrt{2})$

10.

Which one of the following options is true, and why? $y = 3x + 5$ has

a unique solution

only two solutions

infinitely many solutions

Worksheet Answers

10.

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