• Find the coordinates of the points on the x-axis which
are at a distance of 10 units from the point (-4, 8).
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Answer:
B(-4,8 )
AB =10
AB =10
AB = 100 [(X-(-4)]² +0-8² =100
(X+4)² +(-8)² =100 X²+16+8X+64=100
X² +8x+64 +16 =100 X²+8x-20=0
x²+10x-2x-20 =0
x (x+10) -2(x+10)=0
(x+10)(x-2)=0
x=-10,x=2
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