The percent of english students who turn their papers in on time varies according to the day of the quarter.

The percent of english students who turn their papers in on time varies according to the day of the quarter. There are 44 days in the quarter, with the lowest percentage being 60% on time on day 21, and the highest being 98% on day 43. Model this variable using a sine function and graph it. Also need the amplitude, period, phase shift and vertical shift. Along with the equation.

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x=