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AnnyKZ [126]
3 years ago
5

{(5,4),(4,7),(5,3)} is this a function. Explain why?

Mathematics
2 answers:
eimsori [14]3 years ago
4 0
Hi there!

This isn't a function, because the x value of 5 (or domain value) is paired with multiple y values (range values).

Since both the coodernates (5,4) and (5,3) have 5 as the x values, then it isn't a function.

Hope this helps!
Andreyy893 years ago
3 0
No, this is not a function because there is two x values there can't be two x values to be constant and true
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Answer:

  (c)  (3, 3)

Step-by-step explanation:

Point E partitions both the x-distance and the y-distance in the ratio 2 : 1. That is, for either the x-coordinates or the y-coordinates, ...

  CE : ED = 2 : 1

Try the answers with the x-coordinates.

  CE : ED = (1 -(-1)) : (5 - 1) = 2 : 4 . . . . incorrect

  CE : ED = (-3 -(-1)) : (5 -(-3)) = -2 : 8 . . . . incorrect

  CE : ED = (3 -(-1)) : (5 -3) = 4 : 2 = 2 : 1 . . . . correct

  CE : ED = (-1 -(-1)) : (5 -(-1)) = 0 : 6 . . . . incorrect

The only viable choice is (3, 3).

_____

<em>Alternate solution</em>

For a partitioning of m : n, the desired point is ...

  E = (n×C +m×D)/(m+n)

For partitioning of 2 : 1, the desired point is ...

  E = (1×(-1, -3) + 2×(5, 6))/(2+1) = (-1+10, -3 +12)/3

  E = (3, 3)

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3 years ago
Construct a line that is tangent to a circle at a given point
Ilia_Sergeevich [38]
Steps:

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2) Draw a line that passes through the center (A) and the given poiint (B).

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Step-by-step explanation:

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5a-0.1= 4.9a

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dive both sides by 4.9 and you get

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Answer:

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Step-by-step explanation:

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