Question

What is the partial derivative with respect to x of the function ?=4?+6?=4x^3+6y  evaluated at x=2 and...

What is the partial derivative with respect to x of the function ?=4?+6?=4x^3+6y  evaluated at x=2 and y=2?

a. 38

b. 32

c. 54

d. 48

Homework Answers

Answer #1

Solution: (d) 48

Given,

?= 4x3 + 6y

x= 2 and y = 2

The Partial derivative of U with respect to x is written as follows:

Therefore, at x= 2 and y=2, the partial derivative of U with respect to x is

In order to calculate To calculate ∂U/∂x, we simply view yy as being a fixed number and calculate the ordinary derivative with respect to x, we simply view y as a fixed number and calculate the ordinary derivative with respect to x and for ∂U/∂y, we assume x to be a constant value.

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