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Jlenok [28]
2 years ago
6

Which function is the inverse of Rx) = 8x + 4?

Mathematics
2 answers:
Westkost [7]2 years ago
7 0

Answer:

D

Step-by-step explanation:

let y = f(x) and rearrange making x the subject

y = 8x + 4 ( subtract 4 from both sides )

y - 4 = 8x ( divide both sides by 8 )

\frac{y-4}{8} = x

Change y back into terms of x with x = f^{-1} (x)

f^{-1} (x) = \frac{x-4}{8} → D

babunello [35]2 years ago
5 0

Answer:

B.~f^{-1}(x)=\frac{x-4}{8}

Step-by-step explanation:

To find the inverse of a function, swap the places of the x and y variables and solve for y again.

x=8y+4\\x-4=8y\\\frac{x-4}{8}=y

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3 years ago
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A bank loans a customer $100,000 for a period of 2 years. The simple interest rate of the loan is 5.7%. What is the total amount
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Answer:

$111400

Step-by-step explanation:

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5 0
3 years ago
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Tems11 [23]

QUESTION 1

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y=x^2+2x+1

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QUESTION 2

The given equations are:

y=x^2-2x - 1

and

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We equate both equations to get:

x^2-2x - 1 = -x^2-2x-1

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The given equations are:

y=x^2+2x+1

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y=x^2+2x-1

We equate both equations:

x^2+2x+1 = x^2+2x-1

Group similar terms:

x^2 -x^2+2x = -1 - 1

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This is not true.

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