nahamaantoine51 nahamaantoine51

19-10-2020
Mathematics

contestada

true or false? y=x^2 - 1 defines y as a function of x

Respuesta :

ExcludedPenguin ExcludedPenguin

19-10-2020

Answer:

true

Step-by-step explanation:

it equals to

x1= -1

and

x2= 1

Answer Link

19-10-2020

Answer:

Step-by-step explanation:

y=x²-1 is not a function for every value of y , x has more than one value

ex: if x=-1 , y=(-1)²-1 then y=0

if x=1 then y=0

Answer Link

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