Let \( y = y_1(x) \) and \( y = y_2(x) \) be the solution curves of the differential equation \( \dfrac{dy}{dx} = y + 7 \) 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.
