Answer:
3 over -1, should equate to a Slope of -3.
Step-by-step explanation:
To begin, start at wherever the line hits the Y-Axis! If you're looking in the correct place, you will notice it connects with the Y-Axis at point, (0, -3)! This is because, the line has not moved from your X axis, but notice it went down on your Y-Axis, which automatically means it is negative. You now know, that your y-intercept (the place where your line begins) is -3.
Now, for calculating the actual slope of the line. You must start from the Y-Axis I just had you identify. This should be very simple. Slope is RISE over RUN. So now, travel to the next place you see the line hit another point, or vertex. We have to go UP 3, and LEFT 1, to get to the next point which the line hits. That point is called, (0, -1). To find out why it's that, refer back to what I said earlier about the y-intercept.
Now that you know where it is, you just have to plug in the 3 and the 1. Since it went up three, that's your rise, so you put 3 on the top of the fraction bar, and -1, on the bottom of the fraction bar, since it went LEFT, which is negative.
3 over -1, should equate to a Slope of -3.
