MATHEMATICS MIDDLE SCHOOL

What is the inverse of the function f(x) = 2x + 1?

Answers

Answer 1
Answer:

Answer:

f^(-1)(x) = (x-1)/(2)

Step-by-step explanation:

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

y = 2x + 1 ( subtract 1 from both sides )

y - 1 = 2 ( divide both sides by 2 )

(y-1)/(2) = x

Change y back into terms of x and let x = f^(-1) (x), thus

f^(-1)(x ) = (x-1)/(2)

Related Questions

4x(4+3)=5(2x+5) what is the value of x. write answer as a fraction​
If x=5 what is y=-2x+3
Gerard’s baby brother spends 7/8 of his day sleeping. How many hours does his baby brother sleep? i
What's the answer for 155 times 5
I’m pretty sure the correct answer is C. but I’d like to double check.

Ten times the sum of half a number and 6 is 8

Answers


Even though we don't know the number yet, we need to give it some kind of label
so that we can work with it.  We can call it anything.  I'd like to call it ' G '.

The number we're looking for is ' G '.

Half of it is  1/2 G

The sum of that and 6 is          1/2 G + 6

Ten times that is              10 (1/2 G + 6)

The question says that's 8.
                                        So       10 (1/2 G + 6) = 8

Divide each side by  10 :                1/2 G + 6  =  0.8

Subtract  6  from each side:            1/2 G  =  - 5.2

Multiply each side by  2 :                        G  =  - 10.4

That seems like a weird answer.  We should check it.

The number:                                         -10.4
Half the number:                                   - 5.2
The sum of half the number and 6:      -5.2 + 6 = +0.8
Ten times that sum:                                                  8

Yep !  By golly, sho nuff, dV-dT and E to the X !  
Everything checks out, and the mystery number is      - 10.4

What is 0.005 in words

Answers

it's 5 thousandths because it's the third space
5 hundredths, its the same as whole numbers, just backwards

What measure of center best represents the data set? Data Set {27, 29, 26, 28, 25} A; mean only B; medium only. C; mode only D; mean or medium

Answers

The measure of center that best represents the data set is (D) mean or medium

The data set is given as:

{27, 29, 26, 28, 25}

Rearrange the set as follows:

{25, 26, 27, 28, 29}

In the above set, we have the following highlights

  1. The elements are consecutive numbers
  2. There is no outlier in the set

The mean and the median of a dataset that has consecutive numbers are equal

Hence, the measure of center that best represents the data set is (D) mean or medium

Read more about measure of center at:

brainly.com/question/15214370

Answer:

the answershould be D the mean or medium

Step-by-step explanation:

If 8 people share 2/3 of a pound of roasted peanuts equally, what part of the peanuts will each person get?A)1/12
B) 1/6
C) 1/8
D) 1/4

Answers

there are 8 people so 1/8

Answer:

1/12

Step-by-step explanation:

i got it right in usa test prep

Omarion has 9/10 of pages in a book remaining to read for school. He reads 2/3 of the remaining pages over the weekend. What fraction of the book does Omarion trad over the weekend?B

Answers

(9)/(10) * (2)/(3) = (3* 3)/(2* 5) * (2)/(3) = \boxed{(3)/(5)}

How do you do substitution

Answers

Hey Ndiazndiaz2013!

This is how you do substution:

If you have an equation, for example: x - 6
And you also know that: x = 18
Then you can "substitute" the 18 for x

So then you get 18 - 6 = 12

Another example
If the question is:
y = 4
x = 3
What is 3y - 2x?

Then, because you know that y = 4, you can work out that 3y = 12.
And because you know x = 3, you can work out that 2x = 6.

12 - 6 = 6
So 3y - 2x = 6

Hope this helps!

Chen :D
Other Questions
At a store, the probability that a customer buys socks is 0.15. The probabilitythat a customer buys socks given that the customer buys shoes is 0.20.Which statement is true?OA. Buying socks and buying shoes are dependent events.OB. The probability that a customer buys socks and shoes is 0.05.C. Every customer who buys shoes also buys socks.D. Buying socks and buying shoes are independent events.
How many solutions does the following system of equations have?v=x+22y=5144O A. ZeroO B. Infinitely manyO C. TwoO D.One
a wooden board is 100 centimeters long is cut into two pieces one is 16 centimeters longer than the other what are the lengths of the two pieces
6.6666 to the thousands