Find DOMAIN and RANGE of the following:
a) f(x)= 3/(|x+3|)
b) 1/(cube root of 9x-x^2)
c) ln(9x+x^2)
Please help, I have no idea how to find domain and range of these. Step-by-step would be really helpful. Thank you so much!
A. Look a the denominator. x can be all values except -3.
domain: all real excluding -3
range: from zero (x-inf) to inf (as x approaches -3)
do the same analysis on b,c