sydbid123 sydbid123
  • 13-08-2017
  • Mathematics
contestada

What is the domain of the function y = x2 + 4x - 2 ?

a. All real numbers
b. x < 6
c. All negative numbers
d. y > 6

Respuesta :

kphung76127
kphung76127 kphung76127
  • 13-08-2017
The answer should be A, all real numbers.

This is a quadratic and all quadratic equations have a domain of all real numbers. We know this is a quadratic because it is written in y=ax^2+bx+c form where a is not 0.
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