a hot liquid was placed in a freezer and its temperature was recorded. the date for the first 8 minutes was shown below. at what advage is the temperature changing from 2 to 8 minutes ? use proper units

Find the value of 1715⋅211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.

What is the quadric regression equation that fits these data

How do you use the elimination method for this question? explain, because i really want to understand!