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Nostrana [21]
4 years ago
12

Write a recursive formula for 16, 9, 7, 2, 5

Mathematics
1 answer:
professor190 [17]4 years ago
7 0
Notice that:

7=16-9
2=9-7
5=7-2

the next term would be: 2-5=-3

so each term of the sequence is equal to its previous term, subtracted from the second previous term:

Also, in order to describe the formula, we need to express the 2 first terms, 1 is not enough.

The recursive formula is:

a_1=16
a_2=9
 a_n_2=a_n_1-a_n
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Answer:

3

Step-by-step explanation:

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Inga [223]

a.

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3 years ago
Write a quadratic function whose zeros are -3 and -4
andreev551 [17]

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  f(x) = (x -(-3))(x -(-4))

Step-by-step explanation:

The function can be written as the product of binomial terms whose values are zero at the given zeros.

  (x -(-3)) is one such term

  (x -(-4)) is another such term

The product of these is the desired quadratic function. In the form easiest to write, it is ...

  f(x) = (x -(-3))(x -(-4))

This can be "simplified" to ...

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Answer:

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Use the top top, bottom bottom method.

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