Question

find the equation of the line?

Answer 1

To find the equation of the line we have to find the slope and the intercept with the y axis

so in the graph we can see that the intercept is in 5 and for the slope we use this equation

$m=\frac{y_2-y_1}{x_2-x_1}$

So we replace two coordiantes so I use ( 0,5 ) and ( 1,3 ) so we replace it:

$\begin{gathered} m=\frac{3-5}{1-0} \\ m=-\frac{2}{1} \\ m=-2 \end{gathered}$

So the final equation will be:

$y=-2x+5$