题目内容
14.直线3x+4y+2=0与2x+y-2=0的交点坐标是( )A. | (-2,1) | B. | (-2,6) | C. | (2,-2) | D. | (6,-5) |
分析 直接联立方程组求解交点坐标即可.
解答 解:由$\left\{\begin{array}{l}3x+4y+2=0\\ 2x+y-2=0\end{array}\right.$解得$\left\{\begin{array}{l}x=2\\ y=-2\end{array}\right.$,
∴直线3x+4y+2=0与2x+y-2=0的交点坐标是(2,-2).
故选:C.
点评 本题考查两条直线交点坐标的求法,考查计算能力.
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