How do you get to this answer?

What could explain what happened when the time was equal to 120 minutes

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Ok a point t on a segment with endpoints d(1, 4) and f(7, 1) partitions the segment in a 2: 1 ratio. find t. you must show all work to receive credit.