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inn [45]
3 years ago
4

What constant term should be used to complete the square? x 2 - 5x + _____ = 7

Mathematics
2 answers:
Anni [7]3 years ago
6 0
The correct answer is 25/4 so  choose letter B  as you answer have beautiful day.
kupik [55]3 years ago
4 0
For this case we have an expression of the form:
 x ^ 2 - 5x + _____ = 7
 To complete the square, we must add to both sides of the equation a constant of the form:
 (b / 2) ^ 2
 We have then:
 x ^ 2 - 5x + (-5/2) ^ 2 = 7 + (-5/2) ^ 2
 Rewriting we have:
 x ^ 2 - 5x + 6.25 = 7 + 6.25
 x ^ 2 - 5x + 6.25 = 13.25
 Answer:
 
The constant term that should be used to complete the square is:
 
6.25
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The graph of the parent function p(x)=x^2 passes through the point E (21,184). The graph p is transformed such that the new grap
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The new coordinates of E are (13 , 179)

Step-by-step explanation:

Let us revise some transformation

  • 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  
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∵ p(x) = x²

∵ The graph p is transformed such that the new graph represents

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∵ f(x) = (x + 8)² - 5

∴ x of p(x) is add by 8 and p(x) subtracted by 5

- By using the 2nd and 4th rule above

∴ The graph of p(x) is translated 8 units left and 5 units down

∵ Point E (21 , 184) lies on the graph of the parent function p(x)

∴ Point p translated 8 units to the left and 5 units down

- That means subtract 8 from its x-coordinate and 5 from its

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∴ The new coordinates of E = (21 - 8 , 184 - 5)

∴ The new coordinates of E = (13 , 179)

The new coordinates of E are (13 , 179)

Learn more:

You can learn more about translation in brainly.com/question/2415963

#LearnwithBrainly

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