2121 was rounded to the nearest one. What is the upper bound?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

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

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2