Help please

Just tell me how to set up the equation.

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .