Question

I have to find the slope of the line but i dont understand how.

Answer 1

From the given figure,

We have two points for the given line as,

$(1,0)\text{ and (0, -3)}$

So, the equation for the line is given as,

$\begin{gathered} (y-y_1)=\frac{y_2-y_1}{x_2-x_1}(x-x_1) \\ y-0=\frac{-3-0}{0-1}(x-1) \\ y=\frac{-3}{-1}(x-1) \\ y=3(x-1) \\ y=3x-3 \end{gathered}$

Hence, the equation of the given line is y=3x-3