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Tamiku [17]
4 years ago
8

F(x) = 4x − 12 f−1(x) =___? x +____?

Mathematics
1 answer:
natali 33 [55]4 years ago
6 0

Answer:

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

Step-by-step explanation:

We have been given the function f(x)=4x-12

Below are steps for finding the inverse of the function.

Step 1:

Replace f(x) with y

y=4x-12

Step 2:

Interchange x and y

x=4y-12

Step 3:

Solve for y

x+12=4y\\\\y=\frac{1}{4}x+3

Step 4:

Replace y with f^{-1}(x)

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

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The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)^1/n + c. What does the graph tell
Pie

Answer: n is a positive odd number.

Step-by-step explanation:

Ok, we know that the function is something like:

f(x)=a(x+k)^1/n + c

In the graph we can see two thigns:

All the values of the graph are positive values (even for the negative values of x), but in the left side we can see that the function decreases and is different than the right side.

So this is not an even function, then n must be an odd number (n odd allows us to have negative values for y = f(x) that happen when x + k is negative).

Also, we can see that the function increases, if n was a negative number, like: n = -N

we would have:

f(x) =  \frac{a}{(x+k)^{1/N}}  + c

So in this case x is in the denominator, so as x increases, we would see that the value of y decreases, but that does not happen, so we can conclude that the value of n must be positive.

Then n is a positive odd number.

4 0
4 years ago
Read 2 more answers
Arron spends 1/2 of his $800 weekly wage on rent and 1/4 on repaying the loan for his car. How much money does he have left for
Slav-nsk [51]

Answer:

$200

Step-by-step explanation:

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8 0
4 years ago
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X = y -3
vfiekz [6]
X = y - 3

x + 3y = 13


x + 3y = 13    (replace x with y-3)

y - 3 + 3y = 13

4y - 3 = 13

4y = 13 + 3

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y = 16/4

y = 4



x = y - 3

x = 4 - 3

x = 1


The answer is A. (1,4)

5 0
4 years ago
Select the correct answer. What is the quotient when (16x^4 + 40x^3 - 24x^2) is divided by 8x^2?
ankoles [38]

Answer:

<h3>  (2x - 1) 4</h3>

STEP

1

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Equation at the end of step 1

 ((((16•(x4))-(32•(x3)))+(23•3x2))-8x)+1

STEP  

2

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Equation at the end of step

2

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 ((((16•(x4))-25x3)+(23•3x2))-8x)+1

STEP  

3

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Equation at the end of step

3

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 (((24x4 -  25x3) +  (23•3x2)) -  8x) +  1

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3 years ago
The house was bought for $ 500 and sold for $ 700 what percentage profit did they gain?
jonny [76]

Answer: 40%

Step-by-step explanation:

700 - 500 = 200

200 / 500 = 40%

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4 years ago
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