已知某一个函数的图像经过点(0,-3),且与正比例函数y=二分之一x的图像交于点(2,a)求(1)a的值.(2)k、b的值.(3)这两个函数图像与x轴的所围成的三角形面积
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![已知某一个函数的图像经过点(0,-3),且与正比例函数y=二分之一x的图像交于点(2,a)求(1)a的值.(2)k、b的值.(3)这两个函数图像与x轴的所围成的三角形面积](/uploads/image/z/5639922-18-2.jpg?t=%E5%B7%B2%E7%9F%A5%E6%9F%90%E4%B8%80%E4%B8%AA%E5%87%BD%E6%95%B0%E7%9A%84%E5%9B%BE%E5%83%8F%E7%BB%8F%E8%BF%87%E7%82%B9%EF%BC%880%2C-3%EF%BC%89%2C%E4%B8%94%E4%B8%8E%E6%AD%A3%E6%AF%94%E4%BE%8B%E5%87%BD%E6%95%B0y%3D%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80x%E7%9A%84%E5%9B%BE%E5%83%8F%E4%BA%A4%E4%BA%8E%E7%82%B9%EF%BC%882%2Ca%EF%BC%89%E6%B1%82%EF%BC%881%EF%BC%89a%E7%9A%84%E5%80%BC.%EF%BC%882%EF%BC%89k%E3%80%81b%E7%9A%84%E5%80%BC.%EF%BC%883%EF%BC%89%E8%BF%99%E4%B8%A4%E4%B8%AA%E5%87%BD%E6%95%B0%E5%9B%BE%E5%83%8F%E4%B8%8Ex%E8%BD%B4%E7%9A%84%E6%89%80%E5%9B%B4%E6%88%90%E7%9A%84%E4%B8%89%E8%A7%92%E5%BD%A2%E9%9D%A2%E7%A7%AF)
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