SOLUTION: For the function f:R+ → R where f (x)=x^2 - 4, the range of its inverse function is: A. R B. (-4, infinite) C. R+ D. (0, 2) E. (-2, 2)

Algebra ->  Functions -> SOLUTION: For the function f:R+ → R where f (x)=x^2 - 4, the range of its inverse function is: A. R B. (-4, infinite) C. R+ D. (0, 2) E. (-2, 2)       Log On


   

Question 878282: For the function f:R+ → R where f (x)=x^2 - 4, the range of its inverse function is:
A. R
B. (-4, infinite)
C. R+
D. (0, 2)
E. (-2, 2)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The minimum value occurs when x=0, f=-4, but 0 is not included in R+.
So, the range includes numbers greater than -4
(-4,infinity)