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scoray [572]
2 years ago
9

Help me please I’m so confused ):

Mathematics
1 answer:
Marrrta [24]2 years ago
4 0
The domain is all the x-values you can use with this function. When dealing with a function like this, you need to ask yourself, what would make the bottom equal to 0? Whatever those numbers are, you do NOT want them in your domain.

A fundamental rule is that you cannot divide by 0 or have 0 as a denominator.

So, you solve x^2+6x=0 to find that x=0 or x=-6 would make the denominator 0.

The domain is everything BUT those two values, because they essentially break your function.
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Varvara68 [4.7K]
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D=\sqrt{(x1-x2)^{2}+(y1-y2)^{2}}

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sub

29=\sqrt{(-5-k)^{2}+(5-0)^{2}}
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5+/-4√51=-k
times -1 both sides
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the possible values for k are
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