anonymous
  • anonymous
determine the vertex (both coordinates). (-x^2/3)-(x/2)-(1/5)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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amistre64
  • amistre64
1/2 ---- = -3/4 is your x coord i believe -2/3
amistre64
  • amistre64
-0.0125 = -1/8 would be the y coord.... if i see it right
amistre64
  • amistre64
(-1/3)x^2 -(1/2)x -(1/5) -2/3x -1/2 x = -1/2//2/3 = -3/4 ....yep

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amistre64
  • amistre64
2.5 4.25 8.125 16.0625
amistre64
  • amistre64
-5/16 maybe
amistre64
  • amistre64
125/1000 lol
anonymous
  • anonymous
\[\frac{-b}{2a}=\frac{\frac{1}{2}}{2\times -\frac{1}{3}}=-\frac{3}{4}\]\]
amistre64
  • amistre64
gonna have to ask a brit
amistre64
  • amistre64
(-.75,-.0125) ;)
anonymous
  • anonymous
i got -.95
amistre64
  • amistre64
(-((-.75)^2)) / 3) - ((-.75) / 2) - (1 / 5) = -0.0125 hot of the google
anonymous
  • anonymous
\[-2\times (-\frac{3}{4})^2-\frac{1}{2}\times -\frac{3}{4}-\frac{1}{5}\]
amistre64
  • amistre64
-2?
anonymous
  • anonymous
you are right. i was multiplying the first term by -2 because i am not paying attention.
amistre64
  • amistre64
it helps to sit facing a wall; that way when the butterflys float by you dont get distracted lol
anonymous
  • anonymous
just came to see if you were still here. you are more obsessed than i am!
anonymous
  • anonymous
thanks guys
anonymous
  • anonymous
im stiil trying to figure out you plug in -3/4 for x right?
amistre64
  • amistre64
yes, x = -3/4 = -.75
anonymous
  • anonymous
and how is y?
amistre64
  • amistre64
you simply use the value for x in the equation to determine what 'y' equals.... no easy way around htat

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