preach;c question

Question

The graph of f(x)=a⋅bx passes through the points (-2,5/9) and (2,45). Find a and b.

a=ncorrect   b=  

Answer 1

5 / 9 = ab^-2

45 = ab²

Divide bottom equatio by top equation to solve for b.

Then substitute either ordered pair to solve fo a.

Then answer the remaining questions.