Question 392620
  <pre><font size = 3 color = "indigo"><b>
Hi
x          -1       0       1  
f(x)       1/8      1/2     2
f(x) = ka^x        |Using ordered pair (0,1/2)
1/2 = k a^0
1/2 = k
f(x) = (1/2)a^x    |using ordered pair (1,2)
 2 = (1/2)a^1
 4 = a