Is the function y=sec x always defined? Why or why not?

Outside temperature over the course of a day can be modeled as a sinusoids function. Suppose the temperature is 50 degrees at midnight and the high temperature for the day will be 60 degrees and low will be 40 degree ax Assuming t is the number of hours since midnight, find a function for the temperature, D, in terms of t.

Differentiate the function.   f(x)  = x In x -x

3. Consider a function involving the height over time of a ball thrown into the air. Which would be the independent variable? Which would be the dependent variable? How do you know this? Explanation:

X+200p=10,000  X>0 P>0 express the revenue (price times units sold), R, as a function of p. R=

The graph of which function starts at (0,0)?

Cope) 5. Use the following graph of the function y= f() to find (a) (-4) = (b) f(-2) = (c) f(0) = (a) f(4) = (e) Is f(-1) positive or negative? -5

Determine whether the equation defines y as a function of x. y =1-x? Does the equation define y as a function of x? Yes No ap Textbook lus - Fall 2021) is based on Sullivan: Precalculus, 11e Copyright 2021 Pearson Education Inc. All Rights Reserved.

A relation between x and y is a function when what?

Differentiate the function. Any help appreciated! Thanks!