If you want to graph this, the equation is in the format of....
y=mx+b
m is the slope
b is the y-intercept, the value of y when x=0.
slope is 1.
y-intercept is (0,-5)
To graph, you begin with this point, (0,-5), and move up 1 unit while moving to the right 1 unit. You will also move down 1 unit while moving to the left 1 unit.