Ican't figure this question out. 50 points if you can answer this for me!

(a) gives the height at time , so the flare's starting height is given by :

(b) There are several ways to find the maximum height of the flare. One is to complete the square and write in vertex form:

That is, describes a parabola whose vertex is located at (9, 406); the coefficient of -5 tells us that the parabola is concave, which means the parabola "opens" downward, and the vertex is a maximum. So the maximum height is 406 m.

(C) The flare hits the ground when :

or at about and . We ignore the negative solution (negative time makes no physical sense).

x coordinate is none

step-by-step explanation:

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.