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How Do You Evaluate an Exponential Function?

Evaluate the exponential function f(x)=4•3x for x = -1, 0, 1, 2, 3.

Summary

  1. Since the variable 'x' is in the exponent, we know we have an exponential function!
  2. 1.3 with a bar on top means that the 3 is a repeating decimal

Notes

    1. To plug in, just replace the 'x' in the exponent with the number that we're plugging in for 'x'
    1. To expand each entry in our table, we have to remember order of operations!
    2. Remember that with order of operations, you evaluate exponents before looking at multiplication
    1. Check out the link below for help multiplying the whole number 4, by the fraction 1/3
    2. Multiplying 4 by 1 leaves 4. That's an example of a multiplicative identity