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
professor190 [17]
3 years ago
10

If f(x) = x^2 -1, what is the equation for f–1(x)?

Mathematics
2 answers:
schepotkina [342]3 years ago
5 0

Answer:

The inverse is ±sqrt(x+1)

Step-by-step explanation:

y = x^2 -1

Exchange x and y

x = y^2 -1

Solve for y

Add 1 for each side

x+1 = y^2-1+1

x+1 = y^2

Take the square root of each side

±sqrt(x+1) = sqrt(y^2)

±sqrt(x+1) = y

The inverse is ±sqrt(x+1)

sweet [91]3 years ago
5 0

Answer:

f^-1(x) = sqrt(x + 1)

Or

f^-1(x) = -sqrt(x + 1)

Step-by-step explanation:

y = x² - 1

x² = y + 1

x = +/- sqrt(y + 1)

Interswitch variables:

f^-1(x) = sqrt(x + 1)

Or

f^-1(x) = -sqrt(x + 1)

Where sqrt: square root

You might be interested in
How many inches are in a mile
Lera25 [3.4K]
There are 63360 inches in a mile. Good luck!
5 0
3 years ago
Read 2 more answers
In the diagram below, the value of y must be
REY [17]

Answer:

y = 45°

Step-by-step explanation:

4 sides = 360°

(2y+1)° + y° + 112° + 112° = 360°

2y + y = 360 - 112 - 112 - 1

3y = 135

y = 135÷3

= 45°

4 0
2 years ago
Allie hits the ball 45% of the time
solong [7]

Answer:36 times hope it helps

Step-by-step explanation:

7 0
2 years ago
Define the opposite and the absolute value of 6
Archy [21]
Hello : 
<span>the opposite is : -6 
</span><span>the absolute value is : 6</span>
8 0
3 years ago
If jimmy had had 9 apples and karl has 10 how mush togheter
sveticcg [70]
19? Lol........................
7 0
2 years ago
Other questions:
  • You need to order carpet for a room that has a length that is twice its width. if the area of the room is 450, find the width of
    15·1 answer
  • Simplifying expressions​
    6·1 answer
  • the function y=3.28x converts length from x meters to y feet Im really stuck im not real sure what to do
    12·1 answer
  • Factor completely 3x2 -21
    6·1 answer
  • What is the answer of the question below
    15·1 answer
  • 3. Yolanda assembles charm bracelets. She is paid $.09 per bracelet she assembles Monday through Saturday and
    14·1 answer
  • Paul is selling his paintings at the town square. He has 32 paintings to sell in all and needs to sell at least 17 paintings in
    9·1 answer
  • Which shows the solution in the inequality? -2x &gt; 18
    13·1 answer
  • What is the length of BC? <br> 9 units<br> 11 units<br> 15 units<br> 16 units
    7·1 answer
  • PLS HELP WILL MARK YOU BRAINLIEST!!<br> No fake answers pls
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!