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
nevsk [136]
4 years ago
7

Which function is the inverse of f(x) = –5x – 4?

Mathematics
1 answer:
Finger [1]4 years ago
7 0

Answer:

f^(-1)(x) = \frac{-1}{5} (x+4)

Step-by-step explanation:

Given is a function

f(x) = -5x-4\\

To find its inverse.

We must check whether f is one to one or onto first

If -5x1-4 = -5x2-4 we get x1=x2

Hence f is one to one

Also for every f(x) we can find a x so f is onto.

So inverse exists

Let

y=-5x-4\\-5x=y+4\\x=\frac{-1}{5} (y+4)

Replace x by f inverse and y by x

f^(-1)(x) = \frac{-1}{5} (x+4)

You might be interested in
Help please show your work also ! Btw 9 is 8/10 x 16..
JulsSmile [24]
Do you need more? do you understand it? multiple answers

5 0
3 years ago
The variables x and y vary inversely. Use the given values to write an equation relating x and y. Then find y when x=−3.
-BARSIC- [3]

Answer:

xy-3x=40, x=5

x(y-3)=40

y-3=(40/x)

y=(40/x)+3

y=(40/5)+3

y=8+3

y=11

6 0
3 years ago
Is 3in., 6inch., and 9in., a right triangle?
ICE Princess25 [194]

Answer:

no

Step-by-step explanation:

if you do 3 x 6 x 9 that equals 162 and a right angle is 190, right?

7 0
3 years ago
What is the median of the menu items in the plot below?​
DerKrebs [107]

Step-by-step explanation:

There are 13 numbers here:

30, 30, 31, 32, 42, 49, 58, 58, 67, 67, 69, 78, 90.

The median number is the 7th number, which is 58.

6 0
4 years ago
Read 2 more answers
Help ASAP!!!<br> Please and thank you
Neporo4naja [7]
‘| |’ means modulus.
It’s turns the internal value positive.
We get a negative answer while finding the area of a triangle because there points in the quadrant other than the 1st quandrant i.e where all values are positive
Area of a triangle can never be negative, so we use modulus

7 0
3 years ago
Other questions:
  • A circle has a circumference of 25 meters. Find the length of an arc formed from a
    5·1 answer
  • Determine whether the binomial is a factor of f(x).<br><br> f(x) = x3 + 11x2 + 24x - 36; x - 4
    6·1 answer
  • Which of the following best describes the graph below?
    6·2 answers
  • What percent is 52.52 million of 142 million
    7·1 answer
  • The midpoint of AB is M(-2,-4). If the coordinates of A are (-3,-5), what are the coordinates of B?
    11·1 answer
  • A system of linear inequalities is shown above. ( in the picture )
    5·1 answer
  • I'm so confused. Please help (Picture) on part À and B
    5·1 answer
  • A shopkeeper had 440 apples 128 of the apples were rotten he sought all the good apples at four apples for three dollars how muc
    14·1 answer
  • If A(2, 2) and B(14, 10) find the point that will divide AB into a ratio of 3:1 starting from point A.
    13·1 answer
  • Jackson hikes 220.2 meters up a mountain. If he is 60% of the way up, how tall is the mountain?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!