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Tanzania [10]
3 years ago
5

What makes the open sentence 7x - 7 = 2x + 8 true

Mathematics
2 answers:
lukranit [14]3 years ago
8 0

7x - 7 = 2x + 8

7x - 2x = 8 + 7

5x = 15

 x = 3

Answer

C. X = 3

taurus [48]3 years ago
4 0

If we plug x = 3 into the equation we have

7(3) - 7 = 14

and

2(3) + 8 = 14

So the answer is C

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Write the function whose graph is the graph of y=l x l but is shifted up 9 units.
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The function is y = IxI + 9

Step-by-step explanation:

Let us revise the translation of a function

  • If the function f(x) translated horizontally to the right by h units, then its image is g(x) = f(x - h)  
  • If the function f(x) translated horizontally to the left by h units, then its image is g(x) = f(x + h)  
  • If the function f(x) translated vertically up by k units, then its image is g(x) = f(x) + k  
  • If the function f(x) translated vertically down by k units, then its image is g(x) = f(x) - k  

∵ y = IxI

∵ The graph of the function is shifted 9 units up

- That means the graph of the function is translated 9 units, up

∵ The equation of the function f(x) whose graph shifted k units

   up is f(x) + k

∵ k = 9

∴ The equation of the function is y = IxI + 9

The function is y = IxI + 9

Look to the attached figure for more understand

Learn more:

You can learn more about the translation in brainly.com/question/2451812

#LearnwithBrainly

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3 years ago
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