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Doss [256]
3 years ago
7

The table shows y as a function of x. Suppose a point is added to this table. Which choice gives a point that preserves the func

tion? A) (7, 9) B) (2, −1) C) (−8, −3) D) (−6, −2)

Mathematics
2 answers:
Elina [12.6K]3 years ago
7 0

B

Is the answer I just took the test

Shalnov [3]3 years ago
5 0

Answer:

See explanation

Step-by-step explanation:

Assuming the missing table is the one shown in the attachment,.

For the table to represent a function, none of the first coordinates must repeat.

From the given options, the only point whose first coordinate belong to the table is (-6,-2).

Apart from this point, the other three points can be added to the table and the table will still represent a function.

If this is actually your diagram, then the correct answers are: A) (7, 9) B) (2, −1) C) (−8, −3)

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3 years ago
State the number of possible real zeros and turning points of f(x) = x7 – 6x6 + 8x5. Then determine all of the real zeros by fac
Rudiy27

Answer:

steps below

Step-by-step explanation:

f(x) = x⁷ – 6x⁶ + 8x⁵

f'(x) = 7x⁶ - 36x⁵ + 40x⁴

      = x⁴ (7x² - 36x + 40)   ... (1)

Critical point (x,y): x = 0  ,  x = (36 ± √(-36)²-4*7*40) / (2*7) = (18±2√11) / 7

x = 0   or   x = 3.5    or    x = 1.6

plug into (1): y = 0   ,  y = -394.3  ,    y = 10.1

extreme : <u>maximum (1.6 , 10.1)</u>       <u>minimum (3.5 , -394.3)</u>  ... turning points

x⁷ – 6x⁶ + 8x⁵ = x⁵ (x² - 6x + 8) = x⁵ (x-2) (x-4) =0

<u>real zeros: x = 0,   x=2,    x=4</u>

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3 years ago
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The least common multiple of 5 and 12 is 60.

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−(−2 − n) please help
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2+ n
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3 years ago
Read 2 more answers
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