18 √x−14 solve the domain and the range
I know the Domain is [0 , +infinity), but what is the range? I wrote (4,+infinity)but it is wrong.
~
Given that f(x)=[ 8/(x−7)] and g(x)=[ 3/(x + 4)]
(f/g) (x)=? I know the answer is (8x+32)/(3x-21).
but what is the domain? isnt it (-infinity , 7) U (7 , +infinity)?

Question

18 √x−14      solve the domain and the range
I know the Domain is [0 , +infinity), but what is the range? I wrote (4,+infinity)but it is wrong.
~
Given that f(x)=[ 8/(x−7)] and g(x)=[ 3/(x + 4)]
(f/g)  (x)=?  I know the answer is (8x+32)/(3x-21).
but what is the domain? isnt it (-infinity , 7) U (7 , +infinity)?

anonymous · Answer

for the first one how do you get the domain?

anonymous · Answer

i know that we cant put 0 in a Root so its  [0 , +infinity)

anonymous · Answer

and we cant put a negative number too

anonymous · Answer

oh yea i know

anonymous · Answer

but i cant find the range correctly...

anonymous · Answer

graph the function

anonymous · Answer

I did...

anonymous · Answer

do you see that the first function cant be negative at all so it could take values from 0 to inf

dumbcow · Answer

range is [-14,infinity) since graph is shifted down 14

dumbcow · Answer

for 2nd question...your domain seems correct

anonymous · Answer

@dumbcow are you talking about the first function ?

anonymous · Answer

|dw:1382350004356:dw|
is it like this ?