if the distance between the points a(k,0) and b(0,k) is 10,find the possible values of k.
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Answered by
3
+5root2 and -5root2 are the possible vlues for k.
they could be found by using distance formula.
they could be found by using distance formula.
Answered by
4
√(x2-x1)²+(y2-y1)²
A(k,0) B(0,k)
√(0-k)^2(k-0)^2=10
0-2*0*k+k²+k²-2*k*0+0=10²___________(a-b)²=a²-2ab+b²
k²+k²=100
k²=100/2
k=√50
After simplification:
√2*5*5
=+or- 5√2
A(k,0) B(0,k)
√(0-k)^2(k-0)^2=10
0-2*0*k+k²+k²-2*k*0+0=10²___________(a-b)²=a²-2ab+b²
k²+k²=100
k²=100/2
k=√50
After simplification:
√2*5*5
=+or- 5√2
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