Chapter 2 "One-Time Function" ppt review-Xiangjiao version eight courseware

If the function y = (k-1) xk2 is a proportional function, then k = _________. 2, the image of the straight line y = k1x, y = k2x, y = k3x is shown in the figure, then the size relationship of k1, k2, k3 is _____________. 3. It is known that A (x1, y1), B (x2, y2) are all in a straight line y = -3x, if x1> x2, then the relationship between y1 and y2 is ______________.