F(x) = x2 - 34x how to describe the graph of the revenue function

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

What number should be added to both sides of the equation to complete this square? x^2-10x=7

What is the shape of the height and weight distribution