斜率為無窮大時,直線垂直于x軸,直線上各點(diǎn)橫坐標(biāo)恒定,m=5
斜率不是無窮大時,設(shè)斜率為k
k=(8-m)/(m-5)>1
(8-m)/(m-5) -1>0
(8-m-m+5)/(m-5)>0
(13-2m)/(m-5)>0
(2m-13)/(m-5)
已知經(jīng)過(5,m)和(m,8)的直線的斜率大于1,則m的取值范圍是
已知經(jīng)過(5,m)和(m,8)的直線的斜率大于1,則m的取值范圍是
數(shù)學(xué)人氣:687 ℃時間:2020-04-13 22:56:41
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