Section 3.5.
Read the entire section. Answer the following
questions by 7:00 am. Send an e-mail with subject line **MA251**
to selliott@utm.edu .

1) What does the graph of
y = - sqrt(25-x^2) look like? (See Example
2. That is a minus sign in front of sqrt. sqrt
means "radical sign" or "square root")

1. A half circle
below the x-axis

Wilson Spivey

2) If x^4 + y^4 = 16, find
y' .

2. y'= -(x^3/ y^3)

3) What is the derivative of (tan^(-1)
x)? (This is the inverse tangent function,
also called arctan x ).

1/(1+x^2)

Deonte Johnson