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Ilia_Sergeevich [38]
3 years ago
14

If f(x) = 4x - 3, what is f(x)^-1?

Mathematics
2 answers:
Assoli18 [71]3 years ago
5 0

Answer:

f^{-1}(x)=\dfrac{x+3}{4}

Step-by-step explanation:

Given: f(x)=4x-3

We need to find the inverse.

Step 1: Set f(x)=y

y=4x-3

Step 2: Switch x and y

x=4y-3

Step 3: Solve for y

x+3=4y

y=\dfrac{x+3}{4}

Hence, The inverse of given function is y=\dfrac{x+3}{4}

vazorg [7]3 years ago
3 0
<span>f(x) = 4x - 3
.
The problem asks you to find f(-1).
.
All that this is telling you to do is to evaluate f(x) when x equals -1. So, just go to the
given f(x) and substitute -1 for every x. 
.
Starting with:
.
f(x) = 4x - 3</span>
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