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ololo11 [35]
11 months ago
10

Which set of ordered pairs does not represent a function?

Mathematics
2 answers:
Leokris [45]11 months ago
7 0
<h3>Answer:  Choice D</h3>

============================================================

Explanation:

Let's go through the four answer choices to see which are a function, and which aren't.

  • (A) This is a function since the x coordinates of the points are -6, 4, 1, 8; none of which repeat. Each x input leads to exactly one and only one y output.
  • (B) The same idea happens as it did with (A). The x coordinates are 3, -7, -2, 0 and none of those repeat. Therefore this is a function.
  • (C) Like with the others, none of the x coordinates repeat. We have another function.
  • (D) Unlike the others, x = -2 repeats itself twice. We have the point (-2,4) and (-2,5). This tells us the input x = -2 leads to simultaneous outputs of y = 4 and y = 5. This isn't allowed in a function (see part (A) above). Therefore, relation D is <u>not</u> a function.

If you wanted, you can use the vertical line test as a visual tool to check if we have a function or not. Graphs (A) through (C) will pass the vertical line test. Meanwhile graph D does not pass the vertical line test because of the points (-2,4) and (-2,5) mentioned earlier. You can use graphing tools like GeoGebra or Desmos.

Solnce55 [7]11 months ago
6 0

Answer: The last

Step-by-step explanation: 2 of the x values are the same

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because she's doing the math so that there are 40 plants in each row. So, she's trying to figure out how many rows she will need. When she does the math for 40 plants in each row, she ends up with 193 rows, and 25 corn plants left over

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