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stepan [7]
3 years ago
5

Is this the relation R:={(2,1),(3,1),(5,5),(7,5)} a function?

Mathematics
1 answer:
fredd [130]3 years ago
7 0
<h3>Answer: Yes, it is a function</h3>

This is a function because there are no x values that repeat.

If we had repeated x values, then this would mean a certain input x leads to multiple outputs y, and that would not make it a function.

For instance, if we had (2,1) and (2,2) at the same time, then the input x = 2 leads to multiple outputs y = 1 and y = 2 at the same time. A function would not be possible in this example.

A function is only possible if any input x leads to exactly one output y. It is possible for y to repeat itself and still have a function.

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I'm kinda stuck here
kykrilka [37]

Answer:

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300

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700

5 0
2 years ago
Read 2 more answers
Solve each system by graphing:<br> Y= 1/4x-4 <br> Y= -x+1
AlexFokin [52]
Do you have a graphing calculator?  if yes than all you have to do is hit the y= button in the top left corner and type 1/4x-4 for y1. then you need to hit graph in the top right corner.  repeat this process substituting 1/4x-4 and -x+1
4 0
3 years ago
Simplify the given expression. (18+ - 8)2​
JulsSmile [24]

Answer:

20

Step-by-step explanation:

Our expression:

2 * (18 + - 8)

Plus then minus (+ -) is the same as just minus ( - )

Some examples:

1 + (+ 1) = 2

1 + (- 1) = 0

1 - (+ 1) = 0

1 - (- 1) = 2

Thus, 18 + - 8 is the same as 18 - 8

2 * (18 + - 8) =

= 2 * (18 - 8) =

= 2* (10) =

= 2 * 10 =

= 20

Answer: 20

6 0
2 years ago
Andrea spent 5/9 of her money buying a guitar if she had €296 left how much had she had first​
stealth61 [152]

Answer:

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Step-by-step explanation:

6 0
2 years ago
Add. write your answer as a mixed number in simplest form. 5 1/2+6 7/9
LiRa [457]
The answer is 12 5/18 hope it helps
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