all of the relations are exponential except the second one, where the rate of change is a constant number.
read up on linear functions.
Which choice could be modeled by a linear function? А the amount of money, in an account after years earning 4% interest compounded annually the monthly cost, y, to use a cell phone for x minutes at a rate of 4 cents per minute B С the height, y, of a ball after bouncing times, if each bounce reaches 2/3 the previous height the amounty, of radioactive material remaining after years when decay occurs at a rate of 30% each year
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