if K is a line in the XY-plane, what is the slope of k?
(1)the x-intercept of K is 2
(2)the y-intercept of K is 3
答案是C。请帮我看看是否是这样做:
因为 K=(y2-y1)/(X2-X1),由(1)得:X1=2,Y1=0,由(2)得: X2=0,Y2=3;(1)+(2)可得出答案
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