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Home > INT2 > Chapter 12 > Lesson 12.2.3 > Problem 12-109


An exponential function is a function of the form .

  1. What is the equation of an exponential function that passes through the points and ?

Substitute the points to get two equations.

Solve for a and b.

  1. What does the b‑value from part (a) tell you about the function?

  1. Write a situation that could be modeled by this equation.

Starting value should be .