The approximate percentage of people, P, below the poverty level in the US is given in Table 2. (a) Find a formula for the percentage in poverty as a linear function of time in years since 2015. (b) Use the formula to predict the percentage in poverty in 2019. (c) What is the difference between the prediction and the actual percentage, 10.5%? Table 2 Year (since 2015) 0 P (percentage) 1 2 3 13.5 12.9 12.3 11.7

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