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
Svetradugi [14.3K]
3 years ago
6

Inverse of f(x) = x2 − 9

Mathematics
2 answers:
luda_lava [24]3 years ago
7 0
To find the inverse of a function, replace every x in the equation with a y, and replace every y in the equation with an x:

x = y^{2} - 9

Add 9 to both sides:

y^{2} = x + 9

Square root both sides to get y by itself:

y = \sqrt{x+9}

This equation can be simplified by taking the square root of 9 out of the root:

\sqrt{9} = 3
y = 3 + \sqrt{x}

The inverse of this function is y = 3 + √x.
Sophie [7]3 years ago
5 0
F(x) = x2 - 9
y = x2 - 9
y - 9 = x2
\sqrt{y - 9} = x

y = f(x)
f^(-1) (y) = x
f^(-1) (y) = \sqrt{y - 9}
f^(-1) (x) = \sqrt{x - 9}
You might be interested in
Hank is painting his grandfather's fence. He painted 40 linear feet in 85 minutes. He still has 360 linear feet to paint. His co
Paraphin [41]

Answer:

1.6 is correct answer

Step-by-step explanation:


3 0
3 years ago
How do I take a pic pls tell me
Anna11 [10]
So when you open the app you should see a take a pic or maybe when you tried doing it you blocked it by accident
7 0
2 years ago
Read 2 more answers
I need help solve x
Nitella [24]
×=3
first all you have to figure out is what x equal so to figure out and solve what x is all you have to do is try to think 42 times what would give you 126 or you could just divide 126÷42 when you do all of that your answer will be 3
8 0
3 years ago
Read 2 more answers
X=mn/p <br> solve for m
Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

Multiply both sides by p to get:

xp = mn

Now divide both sides by n to get:

xp/n = m

8 0
3 years ago
The product of sin 30° and sin 60° is same as the product of cos 60 degrees tan 30 degrees and cos 30 degrees tan 60 degrees .
Pani-rosa [81]
From the unit circle:
sin 30 = 1/2, cos 30 = √3 / 2, tan 30 = √3 / 3 , tan 60 = √3;
sin 30 * sin 60 = ( cos 60 * tan 30 ) * ( cos 30 * tan 60 )
Left side of an equation:
sin 30 * sin 60 = 1/2 * √3 / 2 = √3 / 4
Right side:
( cos 60 * tan 30 ) * ( cos 30 * tan 60 ) =
= ( 1/2 * √3 / 3 ) * ( √3 / 2 * √3 ) =
= √3 / 6 * 3 / 2 = √3 / 4
√3 / 4 = √3 / 4 ( correct )
3 0
3 years ago
Other questions:
  • Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours.
    6·1 answer
  • A grade 2 class was playing guess my rule
    12·1 answer
  • Every year,students at Memorial High school volunteer to clean local highway roadsides. Each club or team at the school is
    11·2 answers
  • Which of the pairs (2, 3), (1, 2.5), (6, 1), or (−2, 2) is the solution to the equation 4y−x= 10?
    10·1 answer
  • 5x-9y=17 solve for y
    6·1 answer
  • PLEASE HELP TEST IS TIMED
    15·1 answer
  • Anyone who can do math if you can do this one problem that would be cool
    15·1 answer
  • Solve for x.<br><br> 4(x−214)=−3.7<br><br> Enter your answer as a decimal in the box.<br><br> x =
    13·1 answer
  • Solve for x. help please lol
    9·2 answers
  • Toby has five coins. Three of the coins add up to 30p. Three of the coins add up to 40p. All the coins add up to 50p. List Tony'
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!