There are many questions to lines such as, where does the numerator of a fraction go? Where do you start? Where is the y intercept found? Which number is to plot first? Which way do we go if there is a negative denominator? Where do we start when there is a positive? What do you do to the fraction? How many spaces is two to the right? What do you do to find the answer? Where do you plot the coordinates if they are whole numbers?
     Well, all the questions will be answered. First of all you start in the y-axis or the vertical line of the graph. Pretend the problem is seven, negative two thirds (7, -2/3).  Let's look at the y-axis, in slope we start with the y-axis first. Since it is positive seven we go up seven and plot our point there. Then do rise over run with the fraction. Negative two will be the rise, however since it is negative go down two from seven, which will be six. Then since three is a positive it will go three spaces to the right. Now plot your second point and connect them. That's your slope. It is a negative slope for it you read it left to right and it is up to down.

     Another different example is fifteenth, twenty-seven(15, 27). If both of the numbers are whole number in slope then the slope is always zero, a straight line. To solve this start at fifteeen in the y-axis and go up twenty-seven more for the rise. Next connect the dots and there's your answer. As you can see slopes are really simple. Just use the rise over run to help you with the fractions. There are lots more ways that the problem is written out so this is just a couple of examples.