Which relation is a function?

a.
(6, 5), (1, 1), (6, 4)

b.
(0, 1), (2, 3), (2, 5)

c.
(8, –2), (–2, 5), (6, 0)

d.
(–2, 3), (–5, 9), (–5, 3)

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55

Parallel lines r and s are cut by two transversales, parallel lines t and u. which angles are corresponding angles with angle 8