GRE
The amount of money invested for one year at $$\frac{x}{2}$$ percent simple annual interest that will earn $$2s$$ dollars in interest in that year
The amount of money invested for one year at $$x$$ percent simple annual interest that will earn $$s$$ dollars in interest in that year
$$y$$
$$12$$
$$x$$
The sum of the coordinates of point P
$$0$$
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