# Differentiation

1. Find the rate of change dy/dx where x = x0 (Compute the derivative of the function from the definition only, using limits. Show all steps.)

y = 1/(2-x), x0 = -3

2. Differentiate the function. Simplify your answer.

f(x) = (1/4)x^8 - (1/2)x^6 - x +2

3. Find dy/dx by implicit differentiation.

y^2 +3xy -4x^2 = 9

4. Determine the critical numbers for the given function and classify each critical point as a relative maximum, a relative minimum, or neither.

f(t) = 10t^6 +24t^5 +15t^4 +3

5. Compute the elasticity of demand for the given demand function D(p) and determine whether the demand is elastic, inelastic, or of unit elasticity at the indicated price p.

D(p) = sqrt(400 - 0.01p^2) , p = 120

6. Differentiate the function:

f(t) = [ t^2 +2t +1]/[t2+3t -1]

7. Differentiate the function and simplify your answer.

f(x) = sqrt(5x^6 -12)

https://brainmass.com/math/derivatives/261920

#### Solution Summary

This solution is comprised of detailed explanation and step-by-step calculation of the given problems and provides students with a clear perspective of the underlying concepts.