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一、填空题(每小题4分,共32分)1.点(4,-3)关于原点的对称点坐标是.2.反比例函数y=k-2x的图象在二、四象限,那么k的取值范围是.3.一次函数的图象平行于y=3x且经过点(0,-4).那么它的解析式为.4.函数y=x+3+1x+1的自变量取值
First, fill in the blank questions (each small question 4 points, a total of 32 points) 1. Point (4, -3) The coordinates of the point of symmetry about the origin are. 2. The inverse scale function y = k-2x is in the quadrant quadrant, then the range of k is. 3. The image of a linear function is parallel to y = 3x and passes through point (0, -4). Then its analytical formula is. 4. The function y = x + 3 + 1x + 1 argument value