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KatCoda
KatCoda KatCoda
  • 03-03-2017
  • Mathematics
Answered

The equation for the cross-section of a parabolic satellite TV dish is stated below, measured in inches. How far is the focus from the vertex of the cross-section? _____ in. Enter a number, rounded to the nearest tenth.


y=1/38x^2

Verified Answer :

ChandrikaP ChandrikaP
  • 03-03-2017

 The coordinates of the focus are (h,k+1/4a)(h,k+1/4a)

y=1/38x^2
here h=0,k=0 ,a=1/38

so if we put values to find focus
focus(0,0+1/41/38)=(0,9.5)

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