Question

Which of the following is true?
Choose one answer.
a. A logarithmic function is the inverse of an exponential function.
b. The base of a logarithmic function can be a negative number.
c. The domain of the logarithmic function f(x) = log2x is all real numbers.
d. The range of the logarithmic function f(x) = log2x is all real numbers less than zero

Answer 1

A

Answer 2

a

Answer 3

A

Answer 4

composite of inverse
if f and g are inverse
f(g(x))=x
e^(ln(x))=x
ln(e^x)=x