How to estimate the average rate of change of a modeling function from a graph | Khan Academy

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Given the graph of a skydiver's altitude, Sal finds the average rate of change in altitude over a given time interval.

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Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios.

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You are so intelligent math teacher because you are explaining the concept of function in terms of real problems. As I have noticed that most of the YouTubers just talk about x and y when they teacher functions but I appreciate your logic way of explaining the concepts in more practical terms. Hat off!

jonykhan
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Thankyou Khan, your videos give me life

epicben
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The quality of your videos stagnates, keep it up Khan!!

vid.education
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Thank you for the videos, Is there any playlist for beginner calculus?

bagusbudi
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im in 7th grade trynna learn high school math so i don't have trouble in 8th grade and not have to take algebra1 in highschool

mariaprecious