Question

If point (3, 0) lies on the graph of the equation $2x+by=k$, then the value of $k$ is :

• A. $6$
• B. $3$
• C. $2$
• D. $5$

Answer 1

The correct option is A $6$

Since point lies on graph, it will satisfy the equation.

We put $(3,0)$ in given equation.

$\Rightarrow$ $2\times 3+b\times 0=k$

$\Rightarrow$ $6+0=k$

$\Rightarrow$ $6=k$

$\Rightarrow$ $k=6$