The Graph Shows the Percentage of Households in a Certain $t = 0$

question 56

Essay

The graph shows the percentage of households in a certain city watching television during a 24-hr period on a weekday ( $t = 0$ corresponds to 6 a.m. ). By computing the slope of the respective tangent line, estimate the rate of change of the percentage of households watching television at a-12 p.m.
Note that $d y = 0.03$

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