The amount of a radioactive isotope decays in half every year. The amount of the isotope can be modeled by f(x) = 346(one half)x and f(1) = 173. What does the 346 represent?

Question

anonymous · Answer

The starting amount of the isotope

 The amount of the isotope after one year

 The rate the isotope decreases

 The number of years that have passed

i think its A

anonymous · Answer

its on my alg. 2 exam review

anonymous · Answer

the initial amount of radioactive isotope

anonymous · Answer

thats what i thought thanks!