Addition of functions

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Taught by mrbrianmclogan
  • Currently 4.0/5 Stars.
6279 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, you will learn how to add two functions together and evaluate them for a given term. By combining the two functions and then plugging in the term, you can easily evaluate the addition of the two functions. This is a useful skill to have in mathematics and can be applied in a variety of situations.

Lesson Description:

How to evaluate the addition of two functions

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Questions answered by this video:
  • How do you add two functions?
  • How do you evaluate the addition of two functions at a value?
  • If f(x) = x^2 + 1 and g(x) = x - 1, what is (f + g)(t - 2)?
  • How do you find (f + g)(x)?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows you how to add two functions and evaluate the resulting function at a value. First, the functions are added together. Then, a variable expression is substituted for x in the resulting function. All parts of this solution are explained as they are solved.