What is the difference between a dot plot with symmetric data, and a dot plot with asymmetric data?

The parabola opens: y=√x-4 (principal square root) up down right left

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?