To find the equation of a line in slope-intercept form you need to identify the slope (m) and the y-intercept (b)
To find the slope you use two point in the line:
Use the next formula to find the slope:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex][tex]m=\frac{-2-3}{0-(-3)}=\frac{-5}{0+3}=-\frac{5}{3}[/tex]
The slope of the given line is m= -5/3
The y-intercept is the value of y when x is 0 (the point where the line cross the y-axis)
In this case the value of y when x is 0 is -2.
Then, you get the next equation for the given graph:
[tex]y=-\frac{5}{3}x-2[/tex]