Which relation is a function?

{ (4, 2), (3, 3), (2, 4), (3, 2) }

{ (1, 4), (2, 3), (3, 2), (4, 1) }

{ (1, 2), (2, 3), (3, 2), (2, 1) }

{ (1, - 1), (-2, 2), (-1, 2), (1, - 2) }

For every 14 ice cream cones you buy, you get 2 for free. how many cones will you get if you buy 56 cones

If 1/2 gallon of paint covers 1/6 of the wall, then how much paint is needed for the entire wall?

Lia has $24. Lia and her brother together have a total of $45. The solution of the equation 24 + x = 45 is the amount of money, x, that Lia's brother has. How much money does Lia's brother have?

For a car moving at a constant speed, the distance traveled varies directly with the time spent driving. If such a car travels 270 miles in 6 hours, how many miles does it travel in 8 hours?

Create word problem for 10 - (2x5) + 1

If i work 48.40 hrs at 12 dollars an hour what is my gross pay?

Simplify 3 (x - 2) + 5x 6x 8x-6 8x-2

What adds to negative 13 and multiplies to 42

Y=2x^2-6x+4 separate the values with a comma

Choose an American household at random and let the random variable X be the number of cars (including SUVs and light trucks) they own. Given is the probability distribution if we ignore the few households that own more than 5 cars.