Question

Which of the following is true?

A logarithmic function is not the inverse of an exponential function.
The base of a logarithmic function can be a negative number.
The domain of a logarithmic function f(x) = log2x is all real numbers greater than zero.
The range of the logarithmic function f(x) = log2x is all real numbers less than zero

Answer 1

Dang everybody came to the question like leeches hahaha.

Answer 2

First only...A logarithmic function is not the inverse of an exponential function.

Answer 3

Can ya help with a log problem?

Answer 4

or actually, how to you input a lowered number, like an opposite ^3

Answer 5

onto an online calculator

Answer 6

Which of the following is the solution of log (x + 3)0.001 = -3 ?

Answer 7

the (x+3) is lowered though not to the power of

Answer 8

\[_{3}\] like that but i need it in a seperate calculator -______-

Answer 9

what is it called?

Answer 10

Which of the following is the solution of \[\log _{x+3}0.001 = -3 ?\]

Answer 11

0.001 = 1/1000 = 10^-3

log[x + 3](0.001) = -3
log[x + 3](10^-3) = -3

REWRITE THIS IN EXPONENTIAL form

10^-3 = (X + 3)^-3

since we have the same exponents we can equate the base.

10 = x + 3
10 -3 = x
x = 7

Answer 12

@bittuaryan I'm confused what you were saying about the first question.
Option A is clearly false. The question is asking for which one is true.

Answer 13

ooo

Answer 14

The logarithm and exponential ARE inverse functions of one another. :D

The log function looks something like this.
I think we're looking for option .... C probably.
The domain represents legal \(x\) values the function can take on.
Hmm it looks like this line is defined for all positive values of x yes?
In other words the domain of a log function will be ~ All reals greater than 0.