A function is shown: f(x) = 4x2 − 1. Choose the equivalent function that best shows the x-intercepts on the graph. f(x) = (4x + 1)(4x − 1) f(x) = (2x + 1)(2x − 1) f(x) = 4(x2 + 1) f(x) = 2(x2 − 1)

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