### Home > CCA2 > Chapter 12 > Lesson 12.1.4 > Problem 12-81

12-81.

An exponential function has an asymptote at *y* = 5 and passes through the points (2, 5.64) and (−1, 15). Find the equation of the function. Homework Help ✎

Use *y = ab ^{x} + k*.

*y* = 4(0.4)* ^{x}* + 5