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Let y = y 1 (x) and y = y 2 (x) be the solution curves of the differential equation dx dy = y + 7 with initial conditions y 1 (0) = 0 and y 2 (0) = 1 respectively. Then the curves y = y 1 (x) and y = y 2 (x) intersect at

1. no point
2. two points
3. one point
4. infinite number of points

Correct answer: no point

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