<em>Note: Your question is missing some details. After a little research, I am able to find the complete question which is as follows:</em>
If the function f(x) = mx + b has an inverse function, which statement must be true?
a) m=/0
b) m = 0
c) b=/0
d ) b = 0
Answer:
The value of
cannot be equal to 0. In other words,

Step-by-step explanation:
Considering the function

Lets find the inverse of this function.
Suppose
Lets exchange the variables
and
such as

Lets isolate the variable 


Suppose

As

So, inverse function is

As the denominator
cannot be zero in the inverse function.
Thus, the value of
cannot be equal to 0. In other words,

Keywords: function, inverse function
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