Warning: Undefined array key 1 in /home/acaproso/public_html/._System/._Template/.Main.php on line 116
Functions questions

Functions questions | form three Basic Mathematics

Find Functions examination questions, form three Basic Mathematics in acaproso.com

# Question
1

Sketch the graph of the function :

f(x)=-1+|x|

and find:
(i) the domain,
(ii) the range, of  f(x).


Mathematical Calculation
2

Given that g(x)=5+frac{x}{2}

find the value of

  1. g^{-1}(6)
  2. g^{-1}(0)
  3. g^{-1}(-1)
  4. g^{-1}(a)

Mathematical Calculation
3
  1. Find  g-1(x) and hence evaluate g-1(18) given that g(x)=2x+2.
  2. Use the remainder theorem to find the remainder when  f(x)=x3+2x2-4x+10 is divided by  3x+6.

Mathematical Calculation
4

If f(x)=5x2+17x-12

  1. (i)Evaluate f(10)-f(5)

(ii)Factorize f(x)

  1. Determine the domain and range of f(x).

Mathematical Calculation
5

A function is defined by f(x)=x^{2}-2

Find

  1. f^{-1}(x)
  2. f^{-1}(-2)
  3. The domain of f^{-1}(x)

Mathematical Calculation
6
  1. A function is defined by f(x)=x2-2, Find
  1. The inverse, f-1(x) of this function.
  2. The value of f-1(-2).
  3. The domain of f-1(x)
  1. Rewrite |2x+3|<7 without the solute value sign and hence sketch a graph of the resulting inequality.

Mathematical Calculation
7

The function f is defined as follows:

f(x)=left{egin{matrix} 1 & if , xleq 0\ x^{2}+1 & if , 0< xleq 2\ 5 & if , xgeq 2\ end{matrix}
ight.

  1. Sketch the graph of  f(x)
  2. Use the graph to determine the domain and range of f(x).

Mathematical Calculation
8
  1. The function  f is defined as follows

f(x)=left{egin{matrix} -x+2 & if &x<-1 \ 2 & if & -1<xleq 1 \ x & if & xgeq 1 end{matrix}
ight.

  1. Sketch the graph of (fx)
  2. Use the graph to determine the domain and range of f(x).

Mathematical Calculation
9

Given the function f(x)=x^{2}+6x+10

  1. Find the minimum point of f(x).
  2. Find the x and y intercepts.
  3. Determine the axis of symmetry of f(x).
  4. Draw the graph of f(x) using the results in part(i)-(iii) and use it to indicate the solution of the equation x^{2}+6x-7=0.
  5. Find the domain and range of f(x).

Mathematical Calculation
10

Suppose a function f is defined by f(x)=(x+2)^{2}, find the domain and range of the inverse of the function f.


Mathematical Calculation