18. GOLF In golf, the first shot on every hole can be hit off a tee. The table shows the height y of the golf ball x seconds after it has been hit off the tee.
Time (s)
Height (in.)

For the equations below which statement is 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 .

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1