anonymous
  • anonymous
Determine whether the equation is linear in x. 2√x+5=10
Precalculus
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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Psymon
  • Psymon
So if its linear in x, this means the power of x in the equation is 1.
Psymon
  • Psymon
Oh, you were one of the students I told to sign up on here, haha.
anonymous
  • anonymous
I'm guessing I am really confused about how to determine if the equation is linear and yes haha

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Psymon
  • Psymon
Well, it solely depends on the power of x in the equation: |dw:1378098880079:dw| Thats pretty much all there is to it. If the power of x in the equation is anything but a power of 1, it is not linear.
anonymous
  • anonymous
Also the only radicand is the x not x+5 I should have typed it different
anonymous
  • anonymous
Can you give me an example?
Psymon
  • Psymon
Doesnt matter at all: |dw:1378099014693:dw| Still not a straight line shape.
Psymon
  • Psymon
A square root is the same as an exponent of one-half. So because that exponent is not 1, it cant be linear. So these are all linear equations in x: y = πx + 3 y = 2x - y^2 15 - e^2 = x Even though all 3 of those are funky, x is only to the first power in all 3 of them. So this equation you gave, since it is a square root of x, cannot be linear in x.
anonymous
  • anonymous
So all you're saying is x has to be by itself to be linear for example : 3x and if it is square rooted or has an exponent it is not linear example : x^2?
Psymon
  • Psymon
Yep. It doesnt have to be by itself, just only a power of 1 like your two examples :3 Doesnt matter at all what is multiplying x or dividing x, as long as its first power. So yes, 3x is linear, x^2 is not.
anonymous
  • anonymous
Oh!! Okay I understand Thank You ! :D
Psymon
  • Psymon
Yep, np ^_^ And yeah, im on quite a bit so if you can gnab me then go for it. And im always up in that math resource center Monday and Wednesday until 2 xD
anonymous
  • anonymous
Alright then thank you again haha
Psymon
  • Psymon
Np, good luck : )
anonymous
  • anonymous
Thank you !
goformit100
  • goformit100
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