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Fudgin [204]
3 years ago
14

Which of the following relations is not a function?

Mathematics
2 answers:
Masja [62]3 years ago
4 0

Answer:

A.{(7, 8), (8, 9), (9, 10), (7, 6)}

Step-by-step explanation:

when graphing do the straight line test on the x axis with a pencil or something and if the pencil touches more than one dot than it is not a function.


another way is to just look at the numbers for the x axis and if any of the numbers are the same for example (4,6), (4,9) then it is not a function. an example of a function would be (8,9), (2,6).

GalinKa [24]3 years ago
3 0
The answer would be A
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Step-by-step explanation:

5 0
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OleMash [197]

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Step-by-step explanation:

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3 years ago
the value y varies directly with x. which function represents the relationship between x and y if y=20/3 when x=30?
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If y varies directly with x, means that they can be modeled by a linear equation, lets choose a line with 0 y intercept, that is:
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y = mx
where m is the slope of the line, now we plug in the data we have:
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6 0
3 years ago
What is the domain of the function y=2√x-6?<br> 88AX&lt;∞<br> O 0≤x&lt;∞<br> 3≤x&lt;∞<br> 6≤x&lt;∞
Travka [436]

Answer:

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Step-by-step explanation:

You can look at the equation and or graph to determine the domain of a function. The domain is all the x's that may go into the equation or all the x's on the graph of the function. Inside of a squareroot symbol the number inside there must be positive. While considering the equation, only x's that keep that inside positive can be used.

For sqrt(x-6), x has to be 6 or bigger.

For sqrt(x) - 6, x has to be 0 or bigger.

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ExtremeBDS [4]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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