### Home > A2C > Chapter 7 > Lesson 7.3.1 > Problem 7-164

7-164.

Construct two equations by substituting the coordinates

for *x* and *y*.

18 = *ab*^{1}

3888 = *ab*^{4}

Use substitution to find the value of *a* and *b*.

*y* = 3(6)^{x}

Use the same method as part (a).