# SOLUTION: hey heres another problem i need help on. The chapter im on is called exponential and logarithmic functions. The problem is on writing an exponential function from 2 points on the

Algebra ->  Algebra  -> Exponential-and-logarithmic-functions -> SOLUTION: hey heres another problem i need help on. The chapter im on is called exponential and logarithmic functions. The problem is on writing an exponential function from 2 points on the      Log On

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 Algebra: Exponent and logarithm as functions of power Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Exponential-and-logarithmic-functions Question 131700: hey heres another problem i need help on. The chapter im on is called exponential and logarithmic functions. The problem is on writing an exponential function from 2 points on the functions graph. heres the problem Write an exponential function of the form y=ab^x that includes the given points: (-1, 2/9) (1,2) ThanksAnswer by jim_thompson5910(28593)   (Show Source): You can put this solution on YOUR website! Start with the given equation Plug in x=-1, and Rewrite as Cross multiply Divide both sides by 2 to isolate b Now go back to the original equation Plug in x=1 and y=2 Simplify Plug in Multiply both sides by 2 Divide both sides by 9 Take the square root of both sides Simplify Plug this answer into this equation Multiply Reduce Reduce again -------------------------------- So our values are and which means that the equation is