The value VA of stock A t months after it is purchased is modeled by the function VA(t) = t2 +1.50. The value VB of stock B t months after it is purchased is modeled by the function VB (t) = 10(1.25) t . Based on the model, for which t-values is the value of stock B greater than the value of stock A?
A t=5
B t=6
C t=7
D t=11
E t=12
Is there way to do this without a calculator?
