Home
Class 10
MATHS
If f (x) =8x-14 find x such that f(x) =x...

If f (x) `=8x-14 `find x such that `f(x) =x.`

A

8

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RELATIONS AND FUNCTION

    PREMIERS PUBLISHERS|Exercise SOLUTION TO ACTIVITIES|2 Videos

  • NUMBERS AND SEQUENCES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|23 Videos

  • STATISTICS AND PROBABILITY

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|23 Videos

Similar Questions

Explore conceptually related problems

A function is defined by f(x)=2x-3 Find x such that f(x)=x .

A function is defined by f(x)=2x-3 Find x such that f(x)=f(1-x) .

A function f is defined by f(x)=3-2x . Find x such that f(x^(2))=(f(x))^(2).

A function f is defined by f(x)=3-2x . Find x such that f(x^(2))=(f(x))^(2).

For each of the functions find the f _(x), f _(y), and show that f _(xy) = f _(yx). f (x,y) = (3x)/( y + sin x)

A function f(x) is such that f(x)=0 has 8 distinct real roots and f(4+x)=f(4-x) for x in R . Sum of real roots of the equation f(x)=0 is

PREMIERS PUBLISHERS-RELATIONS AND FUNCTION -OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS
  1. Let f(x) =(1)/( x+1) Domain of y is :

    Text Solution

    |

  2. If A and B are finite sets such this n(A) =p,n(B) =q , then the total ...

    Text Solution

    |

  3. If n (A) =8: n(B) =2 then the total no. of relation that exists betwee...

    Text Solution

    |

  4. The range of a function is a subset of its :

    Text Solution

    |

  5. Given f(x) =2x -x^(2) then f(1)+f(2) is :

    Text Solution

    |

  6. Let f(x)= 3x -2 find (f(x+2) -f(2))/(x)

    Text Solution

    |

  7. If f (x) =8x-14 find x such that f(x) =x.

    Text Solution

    |

  8. Let f: A to B be a function such that f(A) =B . Then f is called

    Text Solution

    |

  9. let f be function f: N to N be defined by f (x)= 4x+3,x in N. Then ...

    Text Solution

    |

  10. Let f be a function from R to R defined by f (x) =2x-3 Find the value...

    Text Solution

    |

  11. The distance S (in kms ) travelled by a particle in time t hours is gi...

    Text Solution

    |

  12. If the function f: R to R is defined by f (x) {:{( 2x+1 ,xlt-1) ,...

    Text Solution

    |

  13. Let A ={ 1,2,3,4} and B =N .Let f : Ato B be defined by f (x) =x^(...

    Text Solution

    |

  14. The function 't' which maps temperature in 'C' to 'F' is defined by t ...

    Text Solution

    |

  15. If f(x) =x^(2) -2,g (x) =2x+ 1 then f^(@) g (x)

    Text Solution

    |

  16. Find k if f^(@) f (k) =13 where f(k) =2k -1

    Text Solution

    |

  17. If f(x)=2x-1, g(x)=(x+1)/(2), show that fog=gof=x.

    Text Solution

    |

  18. If f(x) =x^(2) -7,g (x) =x-4 find a if g^(@) f (a)= 5

    Text Solution

    |

  19. If (a,7)( ,(2,b) represents an identify function then the value of a ...

    Text Solution

    |

  20. If there are 512 relation from a set A ={ 1,2,3} to a set B then the ...

    Text Solution

    |