12(y-2)=(x+1)^2 What is the focus and Directrix?

Which of the following graphs represents the function f(x) = 2^x

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

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