Tuesday, April 16

Mathematics Dealing With Functions

Introduction of mathematics dealing with functions:

The mathematics dealing with functions in the form of f(x) = 2x+3, we are assigning the value for variable x in the given function so that we can solve the functions  in math. Now we are given several values for variable x in the given function and finding the solution for each function. Example for s function is f(y)=19y+12,function f(2). Using the square equation solve a function rule  of f(x) = 2x2 +4x +28, function of f(2).

Example of mathematics dealing with functions:

f(2) = 2x+2 and  f(x) =` (x+2)/2` , here the variable of x is 2.

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Problems how to find mathematics dealing with functions in square equations


Problem 1 : Using  square equation find  the mathematics dealing with functions of f(9), when f(x) = `(x+2)/2` +2.

Solution : Here the variable is given as 9 find the function of f(9).

f(x) = `(x+2)/2` + 2 find the f(9)

The value of x is 9 is given

f(9) = ` (9+2)/2 ` + 2

f(9) =  `11/2 ` + 2

f(9) = 5.5+2

f(9) = 7.5

Problem 2 : Using  square equation find  the mathematics dealing with functions of f(8), when f(x) = `(x+3)/4` +12.

Solution :

Here the variable is given as 8 find the function notation of f(8).

f(x) =`(x+3)/4 ` +12 find the f(8)

The value of x is 8 is given

f(8) = `(8+3)/4 ` +12

f(8) = `(11)/4` +12

f(8) = 2.75 + 12

f(8) = 14.75

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Problems in mathematics dealing with functions


Problems1: using mathematics dealing with functions of f(3),  When f(x ) = `(2(x+3))/8`

Solution:

Using the function  f(3) in the constant function

f(x) =` (2x+6)/8`

f(3) = `(2xx3+6)/8 ` here substitute x value 3 in the given constant function

f(3) = `12/8.`

f(3) = 1.5

Problems 2: using mathematics dealing with functions of f(4). When f(x ) = `(2(x+6))/4`

Solution:

Using function f(4) in the constant function

f(x) =  `(2(x+6))/4`

f(4) = `(2(x+6))/4` here substitute x value 4 in the given constant function

f(4) =` (2xx4+12)/4.`

f(4) = `(8+12)/4`

f(4) = `20/4`

f(4) = 5

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