Which of the following is true?
a. The base of a logarithmic function can be a negative number.
b. The range of the function f(x) = log5x is all real numbers.
c. The base of a logarithmic function can be zero.
d. The domain of the function f(x) = log5x is all real numbers less than zero.

I think its b... is it?

Question

Which of the following is true? 
a. The base of a logarithmic function can be a negative number.
b. The range of the function f(x) = log5x is all real numbers.
c. The base of a logarithmic function can be zero.
d. The domain of the function f(x) = log5x is all real numbers less than zero.

I think its b... is it?

parthkohli · Answer

I think it is a. because negative can have powers. I THINK.

anonymous · Answer

b

anonymous · Answer

no in my notes it says the base can never be negative...

parthkohli · Answer

Okay, I don't know about logs. Then it is b.

anonymous · Answer

ok thanks!

anonymous · Answer

Logs are always increasing from negative infinity to positive infinity