Use the graphical method to find the value of 'k' , if
(iii) (k, -3 ) lies on the straight line 2x + 3y =1
(iv) (5, k-2 ) lies on the straight line x - 2y +1 = 0
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k = 5 if (k, -3 ) lies on the straight line 2x + 3y =1 or (5, k-2 ) lies on the straight line x - 2y +1 = 0
Step-by-step explanation:
2x + 3y =1
x y
-1 1
2 -1
5 -3
8 -5
(k , - 3) lies on this ( 5 , - 3) lies on this
hence k = 5
x - 2y +1 = 0
x y
-1 0
1 1
3 2
5 3
7 4
(5, k-2 ) lies on this
5 , 3 lies on this
=> k - 2 = 3
=> k = 5
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