一、填空题: z、已知一次函数,二(Zm一z)、,。,一,爪,4,若y随,的增大而减小。则。=_。 2.原点到直线,=音二+4的距离是—。 3.己知直线y=3万+b(b1)向下平移1个单位后,它与x轴、y轴围成的三角形面积缩小为原来的令,则。二_。 4.如图,相交于尸(2,2)点的互相垂直的直线l,与二轴的 First, fill in the blank questions: z, a known function, two (Zm a z),,. One, claw, 4, if y decreases with increasing. then. =_. 2. The distance from the origin to the line, = 2 + 4 is -. 3. Once the known line y=30,000+b(b1) has been translated 1 unit downwards, the triangle area enclosed by it and the x-axis and y-axis is reduced to the original order. two_. 4. As shown in the figure, perpendicular to each other at the point of the corpse (2,2), and two axes