PLEASE HELP! MARKING BRAINLIEST IF ITS CORRECT

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

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 .

Witch represents the inverse of the function f(x)=1/4x-12