Which of the following sets of ordered pairs is not a function?

{ (0, 2), (1, 4), (2,5), (3, 6) }

{ (-1, 2), (1, 3), (1,5), (-3, 4) ]

{ (0, 2), (1, 2), (2, 2), (3, 2) }

{ (-4,3), (-1, 1), (-2,5), (3, 7) }

The altitude of a plane as it begins to descend is shown by the linear equation a = 30,000 - 1500m, where a is the plane's altitude, in feet, and m is minutes. What is the plane's altitude when m = 12?

Solve the system using substitution. y = - 6x+54 5y-x+9=0

Write 7/10 as a sum of fraction two different ways

Is 100 students for every 2 buses unit rate?

Three times a number minus 9 is equal to two times the number plus 7

Tabitha's hiking distance in july was 2/5 miles she wrote the distance of 2.02 miles what error did she make?

Solve Y/5.6 = 12 for y

How to reduce 3/63 to its simplest form

Find the next three term sequence 2,8,32,128

Given that x and y are real numbers, find the value of x and y if (x+y) + (x-y) i=7+3i