SOLUTION: Can someone help me write rule for the following function. X, -1, 0, 1, 2, Y, 3/2, 1, 2/3, 4/9 Thanks.

Algebra ->  Functions -> SOLUTION: Can someone help me write rule for the following function. X, -1, 0, 1, 2, Y, 3/2, 1, 2/3, 4/9 Thanks.      Log On


   

Question 1098418: Can someone help me write rule for the following function.
X, -1, 0, 1, 2,
Y, 3/2, 1, 2/3, 4/9
Thanks.
Found 2 solutions by Boreal, MathLover1:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x=-1 and x=1 are reciprocals, suggesting a fraction. 2/3 squared is 4/9.
f(x)=(2/3)^(x)

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
given:
X|Y
+-1|3%2F2
+0|1
+1|2%2F3
+2|4%2F9
as you can see, x=-1 and x=1 are reciprocals, means we have a fraction
2%2F3 squared is 4%2F9
so, your equation is exponential
f%28x%29=%282%2F3%29%5Ex