Find the slope of eac line given (2,3),(4,1)

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 .

What function has a range {yly< 5}? question on picture above^

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a