In the formula A(t) = A0ekt, A(t) is the amount of radioactive material remaining from an initial amount A0 at a given time t an
d k is a negative constant determined by the nature of the material. A certain radioactive isotope decays at a rate of 0.1% annually. Determine the half-life of this isotope, to the nearest year.
U have a solid line...meaning there is an equal sign in the problem u have a y int of -1 (the y int is where ur line crosses the y axis) u have a slope of : 1 it is shaded below the line...so it is less then