selenaperi502
selenaperi502 selenaperi502
  • 17-12-2017
  • Mathematics
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For the function defined by , if x is doubled, what is the effect on y? a. y is quartered c. y stays the same b. y is doubled d. y is tripled  

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Аноним Аноним
  • 17-12-2017
The function is 
y = [tex] \frac{1}{x^{2} } [/tex] ----1.

Plug x = 2x in 1.
∴y` = [tex] \frac{1}{(2x)^{2} } = \frac{1}{4x^{2} } [/tex] ----- 2.

Divide 1 and 2. You will get,

y = 4 y`
Therefore, y is quartered 
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