Question

Find the equation of a straight line passing through $(3,1)$ having slope $\frac{1}{2}$

Answer 1

Slope$=m=\frac{1}{2}$

The line passes through $(3,1)$

Equation of a line is $y-y_1=m(x-x_1)$

$y-1=\frac{1}{2}(x-3)$

$\Rightarrow 2y-2=x-3$

$\Rightarrow x-2y-3+2=0$

$\therefore x-2y-1=0$ is the required equation of a straight line.