Answer:Definition of rate of change. : a value that results from dividing the change in a function of a variable by the change in the variable velocity is the rate of change in distance with respect to time.
A rate of change is a rate that describes how one quantity changes in relation to another quantity. If x is the independent variable and y is the dependent variable, then. rate of change=change in y change in x.
Given that: f(1)=13 and 2f(n-1)+(n-2) then: f(4) will be found as follows: f(2)=2f(2-1)=2f(1)=2*13=26 f(3)=2f(3-1)+(3-2)=2f(2)+1=2*26+1=53 f(4)=2f(4-1)+(4-2)=2f(3)+(4-2)=2(53)+2=108
