A bacterial colony started with 3,000 live cells. As part of an experiment, the colony is exposed to radiation, which kills the cells at a rate of 200 cells per second. 1. Find an equation that expresses the number of cells left living in the bacterial colony in terms of the number of seconds the colony has been exposed to radiation. y= 2. What is the y intercept? Interpret it. If the bacterial colony is exposed to radiation for seconds (that is, if the bacterial colony isn't exposed to radiation), there will be living cells in the colony. Slope: The line has a(n) direction, going from left to right