Mathematics: What is the inverse function of d(x)=-2x-6?

What is the inverse function of d(x)=-2x-6?

YungKardon

31.12.2021

d(x) = 2x -6

$d(d^{-1}(x)) = x = 2d^{-1}(x) - 6 = d^{-1}(x) = \frac{1}{2}x + 3$

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StephiUnicorni

31.12.2021

$d(x)^{-1}=-\frac{x}{2}-3$

Step-by-step explanation:

Rewrite the function with d(x)=y

y=-2x-6

Solve for the variable "x":

$y=-2x-6\\\\y+2x=-6\\\\2x=-6-y\\\\x=\frac{-6-y}{2}$

Now exchange the variables:

$y=\frac{-6-x}{2}$

Simplify. Then, the inverse function of d(x)=-2x-6 is:

$d(x)^{-1}=-\frac{x}{2}-3$

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briannianoel876

17.10.2020

10^6 = (2,930,000), (5,000,000), (4,030,000)

10^-4 = 0.0006, 0.00012

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