anonymous
  • anonymous
A quadratic equation is shown below: x2 - 8x + 13 = 0 Which of the following is the first correct step to write the above equation in the form (x - p)2 = q, where p and q are integers? Subtract 5 from both sides of the equation Subtract 3 from both sides of the equation Add 5 to both sides of the equation Add 3 to both sides of the equation
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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myininaya
  • myininaya
do you know how to complete the square? let's practice do you think x^2-2x+1 can be written as a square?
anonymous
  • anonymous
yes
anonymous
  • anonymous
@myininaya

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More answers

anonymous
  • anonymous
i was thnking it was D?
myininaya
  • myininaya
can you write is as a square for me?
anonymous
  • anonymous
(X-1)^2
myininaya
  • myininaya
okay so if you do that then we have x^2-8x+13+3=0+3 x^2-8x+16=3
myininaya
  • myininaya
so are you think x^2-8x+16 can be written as square?
myininaya
  • myininaya
and you are right about my example
anonymous
  • anonymous
Yes
myininaya
  • myininaya
x^2-8x+16 can be written as (x- ? )^2
myininaya
  • myininaya
what is ?
anonymous
  • anonymous
(x-4)^2
myininaya
  • myininaya
yeah
myininaya
  • myininaya
you did this all by yourself @kristinak
anonymous
  • anonymous
yeah but i still dont know the answer
myininaya
  • myininaya
you are saying we have (x-4)^2=3
myininaya
  • myininaya
4 and 3 are totally integers
anonymous
  • anonymous
so its b?
myininaya
  • myininaya
:(
myininaya
  • myininaya
Can you tell me where you are confused on your first choice?
anonymous
  • anonymous
i thought you said i was wrong when i said it was D?
myininaya
  • myininaya
never said that
myininaya
  • myininaya
i simply was working through what D would have given us
myininaya
  • myininaya
do you not think 4 and 3 are integers?
anonymous
  • anonymous
No they are
anonymous
  • anonymous
thank you so much, sorry i was confused
myininaya
  • myininaya
its okay
anonymous
  • anonymous
can you help me with another?
myininaya
  • myininaya
alright
anonymous
  • anonymous
one moment
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
@myininaya
anonymous
  • anonymous
its the screenshot
myininaya
  • myininaya
can you find the vertex for the first one?
anonymous
  • anonymous
one moment
anonymous
  • anonymous
(70,55)
anonymous
  • anonymous
am i right?
myininaya
  • myininaya
beautiful!
myininaya
  • myininaya
now the vertex is very important for consider the min or even the max for a parabola that is why i asked for the other graph i think a good way to approximate the vertex is just plot those points given
myininaya
  • myininaya
i want you to speculate on what you think the vertex is
myininaya
  • myininaya
now it helped me to actually plot the points so i encourage you to do so
myininaya
  • myininaya
tell me what you think looks like the middle point of that graph
anonymous
  • anonymous
(1,899.50)
myininaya
  • myininaya
that is very great
myininaya
  • myininaya
now the y values for each of these points is the amount of min production cost from each graph
myininaya
  • myininaya
aka lowest y value for each graph
myininaya
  • myininaya
the question ask you to compare the y values basically it ask which one is greater
anonymous
  • anonymous
company 2?
myininaya
  • myininaya
right because 899.5>55 so company 2 has a bigger min production cost
anonymous
  • anonymous
thank you!! can you help me with like 2 or 3 more?
myininaya
  • myininaya
honestly i cannot i have to leave i suggest posting a new question
anonymous
  • anonymous
oh okay thank you
myininaya
  • myininaya
np have a great night

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