Medal rewarded. Really need help has to be turned in by midnight.
A sandbag was thrown downward from a building. The function f(t) = -16t2 - 32t + 384 shows the height f(t), in feet, of the sandbag after t seconds:
Part A: Factor the function f(t) and use the factors to interpret the meaning of the x-intercept of the function. (4 points)

Part B: Complete the square of the expression for f(x) to determine the vertex of the graph of f(x). Would this be a maximum or minimum on the graph? (4 points)

Part C: Use your answer in part B to determine the axis of symmetry for f(x)? (2 points)

Question

Medal rewarded. Really need help has to be turned in by midnight.
A sandbag was thrown downward from a building. The function f(t) = -16t2 - 32t + 384 shows the height f(t), in feet, of the sandbag after t seconds:
Part A: Factor the function f(t) and use the factors to interpret the meaning of the x-intercept of the function. (4 points)

Part B: Complete the square of the expression for f(x) to determine the vertex of the graph of f(x). Would this be a maximum or minimum on the graph? (4 points)

Part C: Use your answer in part B to determine the axis of symmetry for f(x)? (2 points)

reemii · Answer

A: -16t^2 - 32t + 384. to factor it means to write it in the form $c(t-a)(t-b)$. 
things must be done in the right order:
* find $c$ : it is the coefficient of the term in $t^2$.
* factor it out: $f(t)= c g(t)$
* use the method of your choice to find the zeros of the $g(t)$.
what is $c$ ? what is $g(t)$?

ranga · Answer

f(t) = -16t^2 - 32t + 384
-16 is a common factor.
First step: Factor out -16
-16t^2 - 32t + 384 = -16(   ?    )

anonymous · Answer

^.^ I have no idea im sorry. Math and me = fail.

ranga · Answer

When -16 is factored out you divide each coefficient by -16.