1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergey [27]
3 years ago
15

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

Mathematics
1 answer:
Alexandra [31]3 years ago
6 0

Answer:

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

\frac{y-1}{2} = x

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

f^{-1}(x ) = \frac{x-1}{2}

You might be interested in
A backpacking tent in the shape of a triangular prism has sides that are 6 ft and a length of 7 ft. What is the volume of the te
Zanzabum
<span>the volume of the tent to the nearest whole number is 109.</span>
3 0
3 years ago
What is the solution of the equation 3x + 5 + 2x - 12
ss7ja [257]

Answer:

7/5

Step-by-step explanation:

3x + 5 + 2x - 12 = 0

5x - 7 = 0

5x = 7

x = 7/5

5 0
2 years ago
Read 2 more answers
I’m the triangle shown below what is the approximate value of x
Dafna1 [17]

Answer:

The answer is choice B: 22.52 units.

Step-by-step explanation:

We use the Pythagoras's theorem which says for a right triangle with sides x,y and hypotenuse z:

x^2+y^2=z^2.

In our case

z=26

y=13

So we solve for x:

x=\sqrt{z^2-y^2}=\sqrt{26^2-13^2}  =\boxed{22.52\: units.}

Which is choice B.

8 0
3 years ago
Please help me with this question
LUCKY_DIMON [66]
All I can find on this is that it would be 10/16 but thats not an awnser. hmmm
7 0
3 years ago
The sum of 8 times a number and 9 equals 3.<br> Use the variable W for the unknown number
olga55 [171]
Answer: W= -0.75
Explanation: 8 x -0.75= -6
-6 + 9= 3
7 0
3 years ago
Other questions:
  • A chocolate shop sold 1 1/4 ounces of white chocolate. It sold 8 1/4 times as much milk chocolate as white chocolate. How many o
    13·1 answer
  • If nona weighs 85 pounds and nina weighs 90 how much does Nino weigh? 2.what is the pattern
    11·2 answers
  • In the problem 19.28 - 1.546, first round each number to the nearest tenth. Then subtract.​
    6·1 answer
  • Shari has 1 ½ gallons of orange juice. She wants to serve the orange juice equally to 12 of her friends. How many ounces of juic
    13·1 answer
  • 2x+3y=3 and -10x+2y=-32
    14·1 answer
  • PLEASE ANSWER QUICK!!
    10·1 answer
  • The total volume of a tree increases 6% each year. What will its volume be after 7 years if its volume is 5 cubic meters now? A.
    8·1 answer
  • 23 x 536 * Your answer​
    15·1 answer
  • There are 15 students in the class and 8 are boys. What is the ratio of girls to students in the room?
    5·1 answer
  • The number 20 is multiplied either by 4 or by 5, then the product is increased either by 3 or by 5, and then the sum is divided
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!