Q4:

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

More Questions from Class 9 Mathematics Linear Equations in Two Variables EXERCISE 4.2

• Q1: Which one of the following options is true, and why? $y = 3x + 5$ has
• Q2(i): Write four solutions for each of the following equations: (i) $2x + y = 7$
• Q2(ii): Write four solutions for each of the following equations: (ii) $\pi x + y = 9$
• Q2(iii): Write four solutions for each of the following equations: (iii) $x = 4y$
• Q3(i): Check which of the following are solutions of the equation $x - 2y = 4$ and which are not: (i) $(0, 2)$
• Q3(ii): Check which of the following are solutions of the equation $x - 2y = 4$ and which are not: (ii) $(2, 0)$
• Q3(iii): Check which of the following are solutions of the equation $x - 2y = 4$ and which are not: (iii) $(4, 0)$
• Q3(iv): Check which of the following are solutions of the equation $x - 2y = 4$ and which are not: (iv) $(\sqrt{2}, 4\sqrt{2})$
• Q3(v): Check which of the following are solutions of the equation $x - 2y = 4$ and which are not: (v) $(1, 1)$