Determine which of the following relations represents a function Select one:
A. {(-3, 0), (-3, 2), (-1, 0), (0, 4)}
B. {(-5, -12), (-3, -6), (-1, 0), (1, 6)}
C. {(-1, 0), (2, 2), (-5, 4), (-1, 4)}
D. {(-3, 0), (0, 2), (-1, 0), (0, 4)}

B

B is the only one where the x-value doesn't have two y-values

step-by-step explanation: yes

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: