Suppose the point (x,y)\displaystyle {\left({x},{y}\right)}(x,y) is in quadrant IV. Decide whether the following ratio are positive or negative.
yr\displaystyle \frac{{y}}{{r}}ry = PositveNegativexr\displaystyle \frac{{x}}{{r}}rx = PositveNegativeyx\displaystyle \frac{{y}}{{x}}xy = PositveNegativery\displaystyle \frac{{r}}{{y}}yr = PositveNegativerx\displaystyle \frac{{r}}{{x}}xr = PositveNegativexy\displaystyle \frac{{x}}{{y}}yx = PositveNegative
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