The function f(t) = 4t2 − 8t + 8 shows the height from the ground f(t), in meters, of a roller coaster car at different times t. write f(t) in the vertex form a(x − h)2 + k, where a, h, and k are integers, and interpret the vertex of f(t).
(a) f(t) = 4(t − 1)2 + 2; the minimum height of the roller coaster is 2 meters from the ground
(b) f(t) = 4(t − 1)2 + 2; the minimum height of the roller coaster is 4 meters from the ground
(c) f(t) = 4(t − 1)2 + 4; the minimum height of the roller coaster is 1 meter from the ground
(d) f(t) = 4(t − 1)2 + 4; the minimum height of the roller coaster is 4 meters from the ground

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x