How do you graph the line #y = -2#?
Make an x and y chart (T chart)
Since y will always equal -2, no matter what value you put in for x, the y is always going to be -2.
So, first plot (0,-2)
Then, you can plot any point you'd like, as long as the y value is -2. The line should turn out to be a straight horizontal line that crosses the y axis at -2