Question 26 • Mathematics I
At x = 0, f(0) = 60 × (1/3)^0 = 60, so the graph’s initial value is 60. Increasing x by 1 multiplies the function value by 1/3, because the exponent increases by 1. Therefore, the best description is that the initial value is 60 and each successive term is determined by multiplying by 1/3.
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