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1. 
The derivative of a function is
A.
a graph
B.
a function
C.
an equation
2. 
If the derivative of a function is always zero
A.
the function is always zero
B.
the functions is increasing
C.
the function is constant
3. 
If f(x) represents the position of an object with respect to time, then f'(x) represents
A.
its velocity
B.
its distance from origin
C.
its acceleration
4. 
If the second derivative of a function is zero at x=a, then the function
A.
has a point of inflexion at x=a
B.
may have a point of infllexion at x=a
C.
is concave upwards
5. 
The function f(x) has a stationary point at x=a and f''(a) >0 then
A.
a is a point of inflexion
B.
a is a local maximum point
C.
a is a local minimum point