Okay, here we have this:
Considering the provided information, we are going to graph the requested line, so we obtain the following:
So let's remember that the slope tells us the amount of units that rises for each unit that advances in x, that is to say that for example from the y-intercept (0, 1) if we follow the slope we would go to (0+1, 1-2)=(1, -1).
And by plotting these points and joining them we get the following line:
And the previous line is the one that we are asked to draw.