SOLUTION: Find the function of the form f (x) = C ax whose graph is shown below. The graph goes through the points (-2, 18) and (0, 2) http://i.imgur.com/jfdSgky.png

Algebra ->  Functions -> SOLUTION: Find the function of the form f (x) = C ax whose graph is shown below. The graph goes through the points (-2, 18) and (0, 2) http://i.imgur.com/jfdSgky.png      Log On


   

Question 912432: Find the function of the form f (x) = C ax whose graph is shown below. The graph goes through the points (-2, 18) and (0, 2)

http://i.imgur.com/jfdSgky.png
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
y=Ca%5Ex
18=Ca%5E%28-2%29
18=C%2Fa%5E2
.
.
.
2=Ca%5E%280%29
2=C%2A1
C=2
Then,
18=2%2Fa%5E2
a%5E2=2%2F18
a=1%2F3
.
.
.
y=2%281%2F3%29%5Ex
.
.
.
graph%28300%2C300%2C-3%2C3%2C-2%2C18%2C2%281%2F3%29%5Ex%29