Can this represent a linear function
f(x)=-x-1/2

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

Which of the following represents the range of the graph of f(x) below

5cakes cost 3.50 how much do 7 cakes cost