Asked by Angellove
Hey! I have a domain and range question! I don't remember how to get these, can you help? How do you calculate the domain and range of these?
What's the domain and range of each?
a. f(x)= 1/x=3
b. g(x)= [square root of] (x+6)
c. h(x)= x^3+2x+5
Thanks for help!:)
What's the domain and range of each?
a. f(x)= 1/x=3
b. g(x)= [square root of] (x+6)
c. h(x)= x^3+2x+5
Thanks for help!:)
Answers
Answered by
drwls
a) Don't you mean 1/(x-3) ?
b. The domain is all numbers greater than or equal to -6, since you cannot take a suare root of a negative numbers.
The range is 0 and all positive numbers.
c. x and h(x) can be any real number, positive or negative
b. The domain is all numbers greater than or equal to -6, since you cannot take a suare root of a negative numbers.
The range is 0 and all positive numbers.
c. x and h(x) can be any real number, positive or negative
Answered by
Angellove
Thanks!:)
Answered by
meangirl
f(x) = x2-4
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