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kap26 [50]
3 years ago
12

If the function f(x) = mx + b has an inverse function, which statement must be true?

Mathematics
2 answers:
svetlana [45]3 years ago
8 0
The inverse function of the function f(x) = mx + b can be determined by expressing the function in terms of x alone. hence, (y - b)/m = x. Then we exhange x and y, to result to <span>(x - b)/m = y. In this case, m is not equal to zero. The answer to this problem hence is A></span>
MakcuM [25]3 years ago
7 0

we have

f(x)=mx+b

Find the inverse of f(x)

Let

y=f(x)

y=mx+b

Exchanges the variables x for y and y for x

x=my+b

isolate the variable y

my=x-b

y=\frac{x-b}{m}

Let

f(x)^{-1} =y

f(x)^{-1}=\frac{x-b}{m} -----> inverse function

Hence

In the inverse function the denominator can not be zero, therefore the value of m can not be equal zero

<u>the answer is the option</u>

m\neq 0

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