曲线 与直线 相交于两点。求这两个交点的坐标。
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完整解法
1
1. Express $y$ in terms of $x$ from the linear equation
From , we have:
2. Substitute the expression for $y$ into the equation of the curve
Substitute into :
3. Expand and simplify to form a quadratic equation in $x$
4. Solve the quadratic equation for $x$
or
5. Find the corresponding $y$ values and state the coordinates
When ,
When ,
The coordinates of the points of intersection are and .
答案
and
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