Given that the straight lines 7x= -2y and ax - by+4=0(a and b are non-zero constants) have no points of intersection, find the value of a/b.
With steps plz!
Thx a lot!
f.4 maths question!10 points
2010-08-20 8:25 pm
回答 (1)
2010-08-20 8:34 pm
✔ 最佳答案
Since two lines have no points of intersection ,therefore line : 7x= -2y // line : ax - by+4=0.Thry have equal slope.The slope of 7x= -2y = -7/2The slope of ax - by+4=0= a/bSoa/b = -7/2
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