The path of a submarine can be modeled by d=0.012t-5.29t where d is the depth the submarine reaches and t is the number of hours the submarine is submerged

a. find the vertex. Then explain the relevance of this point in the context of this problem. Round to the nearest tenth

b. Find the number of hours the submarine was submerged. round to the nearest tenths.

ALGEBRA 2 (Quadratic equations and functions)