Then we write 
( )
F ( )
C
f x dx
x
=
+
∫ These integrals
are called indefinite integrals or general integrals, C is called constant of
integration All these integrals differ by a constant � From the geometric point of view, an indefinite integral is collection of family
of curves, each of which is obtained by translating one of the curves parallel
to itself upwards or downwards along the y-axis