It is given that the inclination of a straight line x is 45 degree,and x passes through two points P (-2,3) and Q(4,k).Find
a)the slope of x
b)the value of k
Coordinate Geometry
2010-08-05 4:41 pm
回答 (2)
2010-08-05 4:53 pm
✔ 最佳答案
It is given that the inclination of a straight line x is 45 degree,and x passes through two points P(-2, 3) and Q(4, k).Finda) the slope of x
b) the value of k
a)
The slope of x
= tan45°
= 1
b)
Slope of PQ = Slope of x
(k - 3)/(4 + 2) = 1
k - 3 = 6
k = 9
參考: adam
2010-08-05 7:39 pm
收錄日期: 2021-04-16 01:06:42
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