2071nabil 2071nabil 19-09-2019 Mathematics contestada i need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Evaluate the difference quotient for the given function: f(x)=(x+3)/(x+1) , (f(x)-f(1)) / x-1