Complete each of the following:-  

1) The point (5 , -3) lies in …………… quadrant.  

2) If ( x + 5 , 8 ) = (1 , 6y + x) then x = ………….. , y = ……….. 

3) If n (X) = 5, n (X x Y) = 15 then n (Y) = …………. 

 
4) The point (4 , 0) lies on ……….. axis.  

5) If (5 , x-7) = (y + 1, -5) then x + y = …………. 

6) If X x Y = {(1 , 5) , (1 , 7) , (2 , 5) , (2 , 7) , (3 , 5) , (3 , 7)} 

 
then X = ………… Y = …………. 

7) If f (x) = 5 x -7 then f (3) = …………. 

8) If f (x) = 6 x then f (2) + f (-2) = …………. 

9) Function f : R → R such that f (x) = 3 x represented by a straight line passes through the point (-4 , ………….)  

10) The linear function f(x) = x + 7 is represented by a straight line cuts X – axis at the point …………… 

11) The linear function f (x) = x + 7 is represented by a straight line cuts X- axis at the point …………. 

12) The linear function f (x) = 2 x- 1 is represented by a straight line cuts y – axis at the point …………. 

13) If the point (a , 3) lies on the straight line which represents the function f : R → R where f(x) = x-5 then a = ………

14) If f (x) = x- 6 and 1 /3 f (a) = -2  then a = ………….

15) If X = {1 , 3 , 5} , f : X → R and f (x) = 2x + 1 then the range of  f = ………..  

16) The linear function f(x) = 2-3x is represented by a straight line cuts Y – axis at the point ………….. 

17) If f is function where f : X → Y then X is called ……… and Y is called …………..

 
18) If f is function from set X to set Y then the range of function f C : ………….. 

19) f is a function where f(x) = 3x – 1 is represented graphically by a line passes through point (a , 2) then a = ………… 

20) (2 , -4) ∈ f (x) where f (x) = kx + 8 then k =…………