Enter your Sign-on user name and password.

Forgot password?
  • Follow us on:
Loading video...
Text Comments (10)

0 answers

Post by NICK FOSTER on January 20, 2011

no iam sorry about that comment everything is ok the videos play and are amazing!!keep up the good job

0 answers

Post by Marsha Taylor on January 23, 2011

These videos are a great for learning math or for review.

0 answers

Post by Jason Mannion on October 4, 2011

Video works fine for me so far. Hope to get a better handle on Calculus now!

0 answers

Post by Jacob Mack on August 8, 2012

In general, any equation can yield a corresponding graph and any graph can be represented by a corresponding equation. Like y = x^2 yields the familiar parabola.

For y = log(x) we can break it apart to be y = f(x) = 1n(x) + x and then move on to solve geometrically.

0 answers

Post by Jacob Mack on August 8, 2012

y = x^2 + 1 would be a function but y^2 = x + 1 is not. To see this algebraically instead of geometrically we can plug a number in for x for the first equation, say, 2, so 2 squared is four + 1 is 5. We have exactly one value of x domain we get one output of y in the equation. Thus, 2^2 + 1 = 5 is a function. Plugging in 3 for the second equation we see it is not a function: y^2 = 3 + so y can be = 2 or -2, therefore there are two outputs from the range y of the equation.

0 answers

Post by Eun Jee Kang on October 9, 2012

I can't continue the lesson after odd and even examples. Please check it out. i don't know what problem is.

0 answers

Post by Maureen Dempsey on March 27 at 01:02:34 PM

hi what is the difference between exponenial and power function....don't they both involve an exponent? She didn't really clarify how they are different. thanks for a great tutoria otherwise.

Review of Functions

  • These are review topics from algebra and pre-calculus – it would be good to just briefly “brush up” on these things!
  • As you go through calculus, it will be important to use the correct terminology for the various terms associated with functions – clear mathematical communication is important!

Review of Functions

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

Mathematics: College Calculus: Level I