In the graph, consider any two coordinates : ( 700,0) & (0,-700)
The general equation of the line is express as :
[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]Substitute the value of the coordinates in the general equation of line:
[tex]\begin{gathered} y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1) \\ \text{ Substitute x}_1=700,y_1=0,x_2=0,y_2=-700 \\ y-0=\frac{-700-0}{0-700}(x-700) \\ y=\frac{-700}{-700}(x-700) \\ y=1(x-700) \\ y=x-700 \\ x-y=700 \end{gathered}[/tex]The equation of line is x - y = 700
In slope intercept form is : y = x - 700
Answer : y = x - 700
