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nexus9112 [7]
4 years ago
12

If K = {(x, y) | x - y = 5}, is Set K a function?

Mathematics
2 answers:
igomit [66]4 years ago
6 0
Yes it is young master
Marrrta [24]4 years ago
4 0

Answer:

Yes, set K is a function.

Step-by-step explanation:

Given K = {(x, y) | x - y = 5}

we have to find is above set is a function or not.

Functions are relations that give one output for each input, or one x- value gives only one value of y.

As, x-y=5

⇒ y=x-5

The above set is a function because every x-value produces a different y-value i.e K satisfies the definition of what it meant for a relation to be  function.

Hence, set K is a function.

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5 0
3 years ago
Please help!!!!!<br> One third of a number x is no more than 15.
Nitella [24]

Answer:

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7 0
3 years ago
Solve x2 − 10x = −13.
aev [14]

Answer:

B

Step-by-step explanation:

First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial x^{2}-10x+13. We can now use the quadratic formula to solve.

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\frac{-(-10)+/-\sqrt{(-10)^{2}-4(1)(13) } }{2(1)}

Simplify:

\frac{10+/-\sqrt{100-52} }{2}

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Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with 5+/-\sqrt{48}.

Hope this helps!

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3 years ago
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