What is the definition of instantaneous rate of change for a function?

Related questions

• How do you find the instantaneous rate of change of a function at a point?
• What is Instantaneous Rate of Change at a Point?
• How do you estimate instantaneous rate of change at a point?
• How do you find the instantaneous rate of change of #f (x)= x ^2 +2 x ^4# at #x=1#?
• How do you find the instantaneous rate of change of #f(t)=(2t^3-3t+4)# when #t=2#?
• How do you find the instantaneous rate of change of #w# with respect to #z# for #w=1/z+z/2#?
• Can instantaneous rate of change be zero?
• Can instantaneous rate of change be negative?
• How do you find the instantaneous rate of change at a point on a graph?
• How does instantaneous rate of change differ from average rate of change?