3 years ago

My grades is they good or bad on your opinion

Mathematics

1 answer:

Oxana [17]3 years ago

6 0

Good!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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What represents the inverse of the function f(x)=4x

Yuki888 [10]

Answer:

$\frac{x}{4}$

Step-by-step explanation:

The given function is

f(x) = 4x

As we know

f(x) = y, which implies x= $f^{-1} (y)$

Therefore,

y = 4x

x = $\frac{y}{4}$

as x= $f^{-1} (y)$

So,

$f^{-1} (y) = \frac{y}{4}$

replacing y by x in the above expression

$f^{-1} (x) = \frac{x}{4}$

So our inverse function is $\frac{x}{4}$

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4x-2y=12. Solve for y

crimeas [40]

Answer:

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Step-by-step explanation:

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attashe74 [19]

Answer:

x = ±20

Step-by-step explanation:

x^2 -1=399

Add 1 to each side

x^2 = 399+1

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Take the square root of each side

sqrt(x^2) = ±sqrt(400)

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