What is the vertex of the quadratic function f(x) = (x – 8)(x – 2)??
1 answer:
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1.
Height h = 240 feet
We insert it into formula.
Now we solve this for t:
We have two answers as the rocket will pass this height on it's way up and down.
2.
Height h = 0 feet
We insert it into formula.
Now we solve this for t:
We do not consider solution -1 as the time can not be negative. Our solution is 5s.
3.
Height at bottom of hill h = 0 feet
We insert it into formula.
Height h = 240 feet
We insert it into formula.
Now we solve this for t:
We have two answers as the rocket will pass this height on it's way up and down.
2.
Height h = 0 feet
We insert it into formula.
Now we solve this for t:
We do not consider solution -1 as the time can not be negative. Our solution is 5s.
3.
Height at bottom of hill h = 0 feet
We insert it into formula.