幫忙做3道英文數(shù)學(xué)題
幫忙做3道英文數(shù)學(xué)題
1.Find the equation of straight line passes through the midpoint of the interval joining (6,2) and (-2,4).and the orgin.
2.the midpoint of an interval is (2.4). If the coordinates at the ends of the interval are (m,5) and (8,n). find m and n.
3.A and B are the points (-3,4) and (6,-2) respectively . If M is the midpoint of AB.Find the distance BM.
幫我做下這3個(gè)英文題吧...
1.Find the equation of straight line passes through the midpoint of the interval joining (6,2) and (-2,4).and the orgin.
2.the midpoint of an interval is (2.4). If the coordinates at the ends of the interval are (m,5) and (8,n). find m and n.
3.A and B are the points (-3,4) and (6,-2) respectively . If M is the midpoint of AB.Find the distance BM.
幫我做下這3個(gè)英文題吧...
英語(yǔ)人氣：697 ℃時(shí)間：2019-12-20 14:36:16
優(yōu)質(zhì)解答
1.the midpoint of the interval joining (6,2) and (-2,4)is (2,3)so if the line is y=kx3=2kso k=1.5the equation of the straight line is y=1.5x2.so we can get m+8=2*25+n=4*2thusm=-4n=33.if M is the midpo...
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