Fav pickup line and ill give free points

In which form is the following function written? y = - 2(x – 3)(x + 5)

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Which strategy is used by public health to reduce the incidence of food poisoning?