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Flura [38]
3 years ago
7

EJ has shown that a function, f(x) grows by 12% for every unit in the domain. What does this prove?

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
6 0

Answer:

The function f(x) is a geometric sequence

Step-by-step explanation:

If we let the first value of this function be denoted by y, then the second value will grow by;

12% of y

= (12/100)*y = 0.12y

The second value will thus be;

y + 0.12y = 1.12y

The third value will grow by;

12% of 1.12y

= (12/100)*1.12y = 0.12(1.12y)

The third value will thus be;

1.12y + 0.12(1.12y)

= 1.12y(1 + 0.12)

= 1.12y * 1.12 = 1.12^{2}y

The function f(x) will thus have the sequence;

y, 1.12y, 1.12^{2}y, ans so on. This is clearly a geometric sequence since we have a common ratio of 1.12.

Art [367]3 years ago
6 0

Answer: B

<h2>B-The Function f(x) is a geometric sequence</h2>

Ive done the test before, this was correct. glad i could help

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Answer:

  C.  {-1, 5, 8}

Step-by-step explanation:

Use each of the domain values in the function to see what the corresponding range value is.

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  f(0) = 5 -3(0) = 5

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The range is the set of numbers {-1, 5, 8}.

_____

<em>Additional comment</em>

The values in a set are generally listed lowest to highest. The coefficient of x in the equation for f(x) is negative, meaning the lowest range value will correspond to the highest domain value. If you start by finding f(2) = -1, you immediately eliminate all answer choices except B and C.

Those choices differ only in the middle value, so you can tell which is correct by evaluating f(x) for the middle domain value: f(0) = 5. Only one answer choice has both -1 and 5 in the set.

(There are two answers here: how you work the problem, and how you game a multiple choice question.)

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2 years ago
Which expression represents a number that is four times as large as the sum of
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Answer:

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Answer:

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Range: 7

Step-by-step explanation:

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