354531
354531 354531
  • 23-05-2021
  • Mathematics
contestada

Find the inverse function.
x - 3
f(x) =
+ 2
5
f-1(x) = [ ? ]x + [ ]

Find the inverse function x 3 fx 2 5 f1x x class=

Respuesta :

pygmacombs
pygmacombs pygmacombs
  • 23-05-2021
Answer: 5(x-2) + 3 [aka 5x - 7, whichever form your computer accepts these both mean the same]

Steps
Solve for the inverse function of
f(x)=((x-3)/5)+2

First one should replace the variables so
that f(x)=((x-3)/5)+2 becomes:


x=((y-3)/5)+2 (this isn’t necessary, it just makes it easier for those to remember the variable they are looking for when first learning about inverses) —> regardless, we are searching for y.

So doing regular algebra, we get:

x=((y-3)/5)+2
x-2=((y-3)/5)
5(x-2)=y-3
5(x-2)+3=y

Thus, the inverse: f(x)^-1 = 5x-7
Answer Link

Otras preguntas

how is 5/30 simpified ?
What is the lowest number 3 5 and 8 can go into
Please help 25v^2-20vx+4x^2
bob and mark talk about their families. bob says he has 3 kids, the product of their ages is 72. Mark points out that there is still not enough information to a
How to put 4/10 in the simplest form
Cedric is constructing a kite in the shape of a rhombus.The spars of the kite measure 15 inches and 24 inches.How many fabric will Cedric need for the kite?
The economic security of the Inca Empire was based on a. intensive maize farming. B. a horizontal compilation of terra firma. C. extensive trade with the Aztec
what is 3k(-5k+21)+2(2.5k+90) <-- Confused please help
180 days equals to how many months
Cans of lemonade and packets of crisps were bought for the school disco in the ratio 3:2. The organiser bought 120 cans of lemonade. How many packets of crisps