Question

Check which of the following are solutions of equation $x-2y=4.$

• A. $(0,2)$
• B. $(2,0)$
• C. $(4,0)$
• D. $(\sqrt{2},4\sqrt{2)}$

Answer 1

The correct option is C

$(4,0)$

Checking for correct option (c):

Checking if $x=4andy=0$ is the solution of $x-2y=4$or not:

We know that if the given value of the variable $x=4andy=0$ satisfies the given equation $x-2y=4$then that value will be the solution of the equation.

Step1:Putting the value of $x=4andy=0$in the given equation $x-2y=4$:

$$\begin{gathered} L.H.S \\ \Rightarrow 4-2\times 0=4 \end{gathered}$$

$$\begin{gathered} R.H.S \\ 4 \end{gathered}$$

Step2: Comparing Both sides:

We can see that $L.H.S=R.H.S$

Hence, $x=4andy=0$ is the solution of $x-2y=4$.