the function is quadratic (a parabola)
the lowest altitude (depth) is the vertex
Rui is a professional deep water free diver.
His altitude (in meters relative to sea level), xxx seconds after diving, is modeled by:
d(x)=1/2x^2 -10x
What is the lowest altitude Rui will reach?
I actually don't understand this problem if its asking for like the vertex or something if someone can please explain this and help me.
16 answers
60
-50
10
40
10
THE ANSWER IS -50
answer is -50... i had this on my khan assignment and got it right
ITS TEN THEYRE ALL WRONG I JUST GOT IT RIGHT DO NOT PUT -50!!!
ITS 10
If you’re on khan academy the answer is -50
The answer is 10 on khan
10
-100 trust
-50
10 and 50 are both right depending on what you are solving for. -50 is his depth and 10 is the seconds it takes him to get there.
1 answer