Let x=1 and delta x= 0.01, find delta y.
f(x)=5x^2 - 1
f(x)=sq rt 3x
compare the values of dy and delta y
y=x^3 x=1 delta x=dx=0.1
y=x^4+1 x=-1 delta x=dx=-0.1
Use differentials to approximate the change in cost , revenue, or profit corresponding to an increase in sales of one unit.
Differentials, Rate of Change, Δx ( delta x) and dx are investigated.