weakmill9 weakmill9
  • 24-06-2016
  • Mathematics
contestada

The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?
A.{2, 4}
B.{-2, -4}
C.{12, 14}
D.{-12, -14}
E.{0, 5}

Relax

Respuesta :

Mehek
Mehek Mehek
  • 24-06-2016
range = y values

domain = x values

Plug 7 for y

7 = x + 5

Solve for x

2 = x

Plug 9 for y

9 = x + 5

Solve for x

4 = x

Domain {2, 4}

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