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一、已知一次函数y_1＝(m~2－4)x＋1－m与y_2＝(m~2－2)x十m~2－3的图象在y袖上的截距互为相反数,且函数y_3＝kx~m与y_1、y_2的图象相交于同一点,试求k值.
First, it is known that the intercepts of the y-sleeve images of the first-order functions y_1=(m~2-4)x+1-m and y_2=(m~2-2)xm~2-3 are mutually opposite. And the function y_3=kx~m intersects the image of y_1, y_2 at the same point, try to find the value of k.