What is the value of y? (Apex)

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

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

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18