Which of the following relationships represents a function?
a.
(-3,0), (2,3), (-1,1), (2,5)
b.
(-3,4), (2,2), (-1,1), (5,2)
c.
(-3,4), (2,6), (-3,3), (5,2)
d.
(-3,4), (2,6), (2,3), (4,2)

How do you summarize data in a two-way frequency table?

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers