Which of the following recursive formulas represents the same geometric sequence as the formula an=2•1/2^(n-1)?

Find the vertex of the function given below y=x^2-6x+1

Me asap! what is the slope of this line? enter your answer in the box.

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)