anonymous
  • anonymous
The focus for this parabola is (-1,0). x=1/4y^2 A. True B. False
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
i should get this one this time... false...
anonymous
  • anonymous
focus is (1,0)
anonymous
  • anonymous
how did you work it out, @dpalnc?

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More answers

apoorvk
  • apoorvk
focus for a std. parabola x^2=4ay, is (0,a) so here its y^2 = 4x so, focus = (1,0). hence FALSE
experimentX
  • experimentX
false |dw:1333444605575:dw|
anonymous
  • anonymous
differenciate x wrt y and put 0, to get a minima..
anonymous
  • anonymous
@JoshDavoll , exactly the way @apoorvk did it...
anonymous
  • anonymous
@apoorvk can you show me how you went from x = 1/4y^2 to y^2 = 4x sorry my brain is not working and i should know this. :) Is it because you multiplied the right side of the equation by the inverse of y's coefficient to get y^2 = 4x?
anonymous
  • anonymous
Wouldn't it be easier to keep it in the standard form: x^2=4ay, is (0,a)?
anonymous
  • anonymous
yeah but most calculators require inputting it as "y = "
anonymous
  • anonymous
k thanks @dpaInc
anonymous
  • anonymous
what about my method? o_O
anonymous
  • anonymous
np... but those guys did most of the work... :)
anonymous
  • anonymous
your method is good to... Arnab...
anonymous
  • anonymous
but i didnt want a medal.. :D
anonymous
  • anonymous
can i have it back then?
apoorvk
  • apoorvk
@joshdavoll i think you got it now?

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