### Home > CCA2 > Chapter 12 > Lesson 12.2.1 > Problem 12-102

12-102.

Given the points (2, 9) and (4, 324): Homework Help ✎

Write the equation of a line that passes through them.

Write the equation of an exponential function with an asymptote at

*y*= 0 that passes through them.

Use *y* = *mx* + *b* and the given points to solve for *m* and *b*.

9 = 2*m* + *b*

324 = 4*m* + *b*

Use *y = a*(*b*)* ^{x}* and the given points to solve for

*a*and

*b*.

*y* = 0.25(6)^{x}