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  (a) 1.54 seconds, -0.26 meters

  (b) approach 3 meters

Step-by-step explanation:

(a) The value of x that minimizes height is 1.54 seconds.

  The minimum height is -0.26 meters.

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(b) For large x, the height appears to asymptotically approach 3 meters.

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph