anonymous
  • anonymous
FAN AND MEDAL TO WHOEVER CAN HELP ME BEST Can someone walk me through this.. A sandbag was thrown downward from a building. The function f(t) = -16t^2 - 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)
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
Can someone please work this through with me so I can understand it??
anonymous
  • anonymous
Did you factor it?
anonymous
  • anonymous
I don't really get how to factor this particular equation.

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anonymous
  • anonymous
-16 is a common factor so we can pull it out. f(t) = -16(t² + 2t - 24) Can you factor from here?
anonymous
  • anonymous
I did that part but would I factor by grouping or...
anonymous
  • anonymous
You don't need to do it by grouping. This is where you look for 2 numbers that add up to 2 and multiply to -24. Then you put them in separate parentheses with "t"
anonymous
  • anonymous
Look familiar? |dw:1433378452387:dw|
anonymous
  • anonymous
yes
anonymous
  • anonymous
I just can't find 2 numbers that add up to 2 and multiply to -24.. I'm really bad at math... :/
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
Can someone explain it to me? please
anonymous
  • anonymous
@shinebrightlikeadimon can you help me??
anonymous
  • anonymous
Fan and medal to whoever can help me.
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
is Part A (t-4) (t+6) if it is what does it mean in terms of the x-intercepts??
anonymous
  • anonymous
anyone???
anonymous
  • anonymous
I need help with B and C
anonymous
  • anonymous
A. The factors are (t - 4) (t + 6), the x-intercepts represents the amount of time (seconds) it took for the sandbag to hit the ground.

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