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ch4aika [34]
3 years ago
13

Which statement describes the end behavior of the function f(x) = 3|x − 7| − 7? A. As x approaches negative infinity, f(x) appro

aches negative infinity. B. As x approaches negative infinity, f(x) approaches positive infinity. C. As x approaches positive infinity, f(x) approaches negative infinity. D. As x approaches positive infinity, f(x) is no longer continuous.
Mathematics
1 answer:
Firlakuza [10]3 years ago
4 0

Answer:

Our expressions is f(x) = 3|x-7|-7

  • in positive values |x-7| is x-7 ⇒f(x) = 3x-28
  • in negative ones |x-7| is 7-x wich is the opposite⇒f(x) = 14-3x

Let's calculate the limits in +∞ and -∞

  • \lim_{x \to +\infty} (3x-28)=\lim_{x \to+ \infty} 3x = +∞
  • \lim_{x \to- \infty} (14-3x) = \lim_{x \to- \infty} -3x =+∞

So the right staement is B

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10/3 bran flakes can make a dozen muffins

A recipe requires 2 1/2 cups of bran flakes

The recipe can make 9 muffins

Let's calculate the amount of bran flakes it will take to make 1 muffin

5/2 = 9

x= 1

cross multiply

9x= 5/2

x= 5/18

A dozen is 12, the number of bran flakes to make a dozen can be calculated as follows

5/18= 1

y= 12

cross multiply

y= 5/18 × 12

y= 10/3

Hence it will take 10/3 to make a dozen muffins

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Step-by-step explanation:

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