Negative one and three fifths divided by negative two thirds
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In the first four months of the year, Noralie's jewelry sales were declining. After April, her sales began to improve. The function below represents her monthly sales. Which graph represents the Noralie's sales?
If we plot that point we find ourselves in QIV. The distance along the x axis is 4, and the distance down from that point is -3. If we create a right triangle with that segment, that segment serves as the hypotenuse of the triangle. We need its measure. Using Pythagorean's theorem, 
and 
. We see that c = 5. We need now to find the secant of that right triangle. Secant if the co-identity of cosine which is side adjacent over hypotenuse. That means that secant is the hypotenuse over the side adjacent. So our secant theta = 5/4