1. Problem: Given a parabola defined by the function $$f(x) = (x - x_1)(x - x_2)$$ with roots $$0 < x_1 < x_2$$, the parabola intersects the coordinate axes at points A and B such that the distances from the origin to A and B are equal.
2. The parabola has its minimum value at $$x = \frac{3}{5}$$.
3. We need to find the ratio $$\frac{x_2}{x_1}$$.
4. Since $$f(x) = (x - x_1)(x - x_2) = x^2 - (x_1 + x_2)x + x_1 x_2$$, the vertex (minimum point) of the parabola is at $$x = \frac{x_1 + x_2}{2}$$.
5. Given the vertex is at $$x = \frac{3}{5}$$, we have:
$$\frac{x_1 + x_2}{2} = \frac{3}{5} \implies x_1 + x_2 = \frac{6}{5}$$
6. Points A and B are the x-intercepts at $$x_1$$ and $$x_2$$, so their coordinates are $$A = (x_1, 0)$$ and $$B = (x_2, 0)$$.
7. The parabola also intersects the y-axis at $$x=0$$, so the y-intercept is:
$$f(0) = (0 - x_1)(0 - x_2) = x_1 x_2$$
8. The points A and B have distances from the origin equal, so:
$$|OA| = |OB| \implies |x_1| = |x_2|$$
But since $$0 < x_1 < x_2$$, the points A and B are on the x-axis at positive values, so the distances are simply $$x_1$$ and $$x_2$$.
This contradicts the problem statement that distances from origin to A and B are equal, so the other point must be the y-intercept.
9. The problem states the parabola intersects the axes at points A and B, and their distances from the origin are equal.
So one point is on the x-axis at $$x_1$$ or $$x_2$$, the other is on the y-axis at $$f(0) = x_1 x_2$$.
Therefore, the distances are:
$$|OA| = x_1$$ (assuming A is at $$(x_1,0)$$)
$$|OB| = |x_1 x_2|$$ (assuming B is at $$(0, x_1 x_2)$$)
Given $$|OA| = |OB|$$, we have:
$$x_1 = x_1 x_2 \implies x_2 = 1$$
10. Using $$x_1 + x_2 = \frac{6}{5}$$ and $$x_2 = 1$$, we get:
$$x_1 + 1 = \frac{6}{5} \implies x_1 = \frac{6}{5} - 1 = \frac{1}{5}$$
11. Finally, the ratio is:
$$\frac{x_2}{x_1} = \frac{1}{\frac{1}{5}} = 5$$
Answer: D) 5
Parabola Ratio Daad27
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