KatieKat143 KatieKat143

27-01-2017
Mathematics

Answered

What is the inverse function of d(x) = 2x - 4?

Verified Answer :

David1993 David1993

27-01-2017

Let d(x) = 2x - 4

Or

y = 2x - 4

We have replace x = y

x = 2y - 4

Now Isolate "y"

x + 4 = 2y

Pass "2" dividing

(x + 4) / 2 = y

y = x/2 + 2

Or

d(x)^-1 = x/2 + 2

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