MC/NR portion) A student gently kicks their math book off of a cliff. The rate at which it falls can be modelled by h(t) = -31+2t+ 8, where h(t) represents the height in meters and t represents time in seconds. The length of time the book was in the air can be determined by graphing the function on their calculator and finding the a. diference between x intercepts O b. y value of the maximum O c. y intercept O d. x value of the maximum Fin

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