Graph of equation 2x-y-4=0 and x+y+1=0 P(a,b) to each other intersect at the point P. Draw the point P director
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Given : equation 2x-y-4=0 and x+y+1=0
intersect at P ( a , b)
To Find : a and b
Solution:
2x-y-4=0
x+y+1=0
add both
=> 3x - 3 = 0
=> x - 1 = 0
=> x = 1
1 + y + 1 = 0
=> y = -2
( 1, -2) is the point of intersection
a = 1 b = -2
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