Question

If the point (1,3) lies on the line $x+ky=4$, then k is.

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is A 1

Given line is $x+ky=4$ and point (1,3) lies on it.

We know that,
if any point is lying on the line then, that point satisfies the equation of the line.

Now,
putting (1,3) in the line
$\Rightarrow 1+3k=4$
$\Rightarrow 3k=3$
$\Rightarrow k=1$