11th Grade Q1

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(QA) 3.1 How do you add two functions?

Adding two functions is like combining their outputs at the same input. Here's how you do it:
To add and , you combine their expressions. Write:

Example

  1. Start with the functions: Write the two functions you want to add. For example, suppose you have:

and

  1. Add them together: Substitute the expressions for and
  1. Simplify: Combine like terms
  1. Interpret the result: The new function is a combination of the two original functions. You can now evaluate it for any . For example:If , then:

Summary

To add functions:

  • Add their outputs.
  • Simplify the combined expression.
  • Use the result to find values for any input.

Given the functions and , calculate the value of their sum for the given .

Generate exercises of the form:

"

"

The answer should have the form (f+g)(x_0) = . Both f and g must be on separate lines, and use math blocks. Add no additional text.

where a_0, a_1, a_2, b_0, b_1, b_2 and x_0 are different integers. The coefficients can take values from -5 to 5. If the coefficient is 0 remove the term. If the coefficient is 1 do not write the 1. x_0 can take values from -20 to 20.

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