### Home > PC3 > Chapter 8 > Lesson 8.1.2 > Problem 8-30

8-30.

An exponential function passes through the points . Write an equation for the function. Homework Help ✎

Write the general equation for this problem.

Substitute the points in for

Subtract

Then divide one equation by the other.

Divide the equations and solve for .

Substitute the -value back into one of the original equations and solve for

*.*