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nikitadnepr [17]
2 years ago
8

Which of these tables could represents quadratic function?

Mathematics
1 answer:
myrzilka [38]2 years ago
4 0

When values of a quadratic function are listed in a table with x-values having a constant difference, the y-vlaues will have a constant (non-zero) second-difference.

Here, we can list first and second differences for the values in the given tables to identify the quadratic function.

Table 1.

  • 1st differences: 3, 3, 3, 3
  • 2nd differences: 0, 0, 0, 0 . . . . this is a linear function

Table 2.

  • 1st differences: -6, -2, 2, 6
  • 2nd differences: 4, 4, 4 . . . . this is a quadratic function

Table 3.

  • 1st differences: 5, -8, -3, -3
  • 2nd differences: -13, 5, 0 . . . . can be described by a 4th degree polynomial

Table 4.

  • 1st differences: 3, 0, -3, -3
  • 2nd differences: -3, -3, 0 . . . . can be described by a 4th degree polynomial

___

The appropriate choice is Table 2.

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