What does a number in parentheses cause the graph to do?

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

41/17 as a decimal rounded to the nearest hundredth