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3 years ago

Which relation is not a function?

Mathematics

2 answers:

Eva8 [605]3 years ago

6 0

Step-by-step explanation: In order for a function not to be a relation,

each x-coordinate must correspond to more than one y-coordinate.

Notice that in third relation, the 1 pairs with a 3

in one case and it pairs with a 7 in the other case.

Since each x-coordinate pairs with more than one y-coordinate,

this relation is not a function but the other ones are functions.

Ivanshal [37]3 years ago

3 0

Answer: C

Step-by-step explanation:

The X value repeats itself

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Step-by-step explanation:

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2 years ago

Which part of the eye acts as a secondary area of refraction to "fine tune" the focus?

makkiz [27]

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3 years ago

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IRINA_888 [86]

Answer:

(a) (6, 2)

Step-by-step explanation:

The system of equations has one of them in y= form, so it lends itself to solution by substitution.

Using the equation for y to substitute into the first equation, we have ...

2x -y = 10

2x -(-1/2x +5) = 10 . . . . . substitute for y

2x +1/2x -5 = 10 . . . . . eliminate parentheses

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x = 6 . . . . . . . . . . . multiply by 2/5

Using the equation for y, we have ...

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2 years ago

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