Relations & Functions Part 2
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Lesson Summary:
This lesson on Relations & Functions Part 2 dives into the world of function notation and how it can be used to find the value of a function from an input. By using specific letters to denote functions and variables, such as f(x) or h(x), equations become more specialized and easier to understand. Function notation also simplifies the process of finding the y-coordinate of a point, given the x-coordinate, as shown through various examples in the lesson. Overall, function notation proves to be a powerful tool in mathematics and the sciences.
Lesson Description:
Function notation and finding the value of a function from an input.
Questions answered by this video:
- What is function notation?
- Given that f(x) = x^3 - 3, how do you find f(-2)?
- What is h(1.6) if h(x) = 0.3x^2 - 3x - 2.7?
- Given f(x) = x^3 - 3, how do you find f(2t)?
- How do you plug an expression with numbers and letters into a function?
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Staff Review
This lesson explains function notation and finding values of a function given an input for the function. This concept of using f(x) instead of y is sometimes a confusing concept to students, but this concept is explained very well in this lesson. Several examples are shown and explained.
