Solve the following functions with 5 custom domains and graph each function. 8. y = (x + 1) 2
9. 2x + y = 4
10. y = 3x
11. y = (x – 2) 2 – 1
12. 12 – x – 2y = 0
13. 3x – y = 13

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)

The table represents a linear function. what is the slope of the function? –6 –4 4 6

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.