Coordinate Geometry
Find the value of x for which distance blu
point P(3, 4) & a (x,7) is 13 units.
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Answer:
distance =√(x2-x1)2 + (y2- y1)2
Step-by-step explanation:
13 =√(x-4)2 + (3)2
squaring on both sides
169 = x2+16-8x +9
0 = X2 -8x - 144
factroize the equation
0= (x+4) (x - 12)
x+4=0
X=-4
X-12=0
x= 12
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