Rate of Change WITHOUT derivatives PROBLEM: Given f(x)=.4(8xx2] Find the rate of change of elevation when x = W taking a derivatives directlv. Instead use find the slope between H2 _ 33) and f(2 + 3'13) Ex = 1 Find the appropriate 2+x ) and zx ) to nd the slope between two DIFFERENT PDIHTS closer to the x=2 value. CHALLENGE: Mamar students each using differentx values seem to be getting very close to the same answer. Why is that true? Would it be true for anvr functioni'l