Question

State the domain and range of each of the following functions

a. f(x)=1/x+3

b. g(x)= sqrt x+6

c. h(x) = x^3+2x+5

Answer 1

c is all real numbers for both

Answer 2

i thought for b it was range=all real #s and domain=-6 ?

but i dont know a.

Answer 3

graph of b
is it using all of the x values on the number line?
Is it using all of the y values on the number line?

Answer 4

these are the only x values I am using for the domain, note I am not using -7, -8, -9, etc