First to write this equation you will need to know <em>slope intercept form</em> which is the equation that the people that wrote this problem are presumably looking for. Slope intercept form can be simply written as . The variable would be the slope while the variable would be the y -intercept.
So to find out this we would have to assume that m or the slope would have to be 1 so we would have or .
Now we have the first half of the equation we can move on to the variable or the y-intercept (0,-6) . To find the variable we will just have to graph the point (0,-6) which as you can see from the picture is the y-intercept and that is -6 units below 0. So the final answer will be
