If an object moves along the y axis(marked in feet) so that its position is at time x(in seconds) is given by f(x)=88x-11x^2

A: The instantaneous velocity function v= f ' (x)
B: The velocity when x=0 and x=1 seconds
C: The time(s) when v=0

Question

If an object moves along the y axis(marked in feet) so that its position is at time x(in seconds) is given by f(x)=88x-11x^2

A: The instantaneous velocity function v= f ' (x)
B: The velocity when x=0 and x=1 seconds
C: The time(s) when v=0

anonymous · Answer

A: $$v(x)=f'(x)=88-22x$$B: $$v(0)=88-22(0)=88 $$$$v(1)=88-22(1)=88-22=66$$C: $$88-22x=0\rightarrow x=4$$

anonymous · Answer

Note that velocity is in ft/sec.

anonymous · Answer

Well it must be nice to be so intelligent haha...takes you a minute to answer and I've been staring at this question for about 20 minutes with ZERO clue

anonymous · Answer

nice @genius12 :)