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How to Add and Subtract Functions

How to Add and Subtract Functions

  • We can add and subtract functions just like we can add and subtract numbers. For instance, if we had two functions, \(f(x)\) and \(g(x)\), we could make two new functions: \((f \ + \ g)(x)\) and \((f \ - \ g)(x)\).
  • When a function has polynomials, combine the like terms to add or subtract functions.
  • When evaluating new functions, you should substitute the input value to find the function's value.

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What is a Function Notation

What is a Function Notation


When evaluating function notations for a specific input value, substitute the input value into the algebraic expression that defines the function. When figuring out the value of a function notation, the focus is on one input and the output that goes with it.
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How to Graph Complex Numbers

How to Graph Complex Numbers


To plot complex numbers on the complex plane, follow the steps below.
  • Find out what part of the given complex number is real and what part is imaginary. For example, the real part of \(z \ = \ a \ + \ ib\) is \(a\), and the imaginary part is \(b\).
  • Make a pair where the first part is real and the second part is imaginary.
    For example, ...

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