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Degree and Finite Differences

Degree and Finite Differences. How the degree translates to a function. What do the graphs look like?. Constant: y=3. Linear: y=x. Quadratic: . Cubic: . Using Finite Differences.

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Degree and Finite Differences

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  1. Degree and Finite Differences

  2. How the degree translates to a function

  3. What do the graphs look like?

  4. Constant: y=3

  5. Linear: y=x

  6. Quadratic:

  7. Cubic:

  8. Using Finite Differences • Given a table of values, there is a trick to find the degree of the equation, it is called the Finite Difference Method. • Once we know the degree, it is easy to find the equation on the calculator.

  9. If the first difference is constant, it is a linear function.

  10. If the second difference is constant, it is a quadratic function

  11. If the Third difference is constant, it is a cubic function.

  12. How do we get the actual Equation? • Once we use the finite difference method to find the degree, we can use the calculator to find the equation.

  13. Magic Button- Stat • Linear – LinReg (ax+b) • Quadratic - QuadReg • Cubic – CubicReg • Then

  14. Practice Problems

  15. Homework • 7.1 Worksheet- All.

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