Because for each x-value in the domain of this relationship, except for 0, there is more than one y-value, this is NOT a function.
-3x + 20 > = 8
-3x > = 8 - 20
-3x > = -12
x < = -12/-3
x < = 4
( - infinity, 4] <== interval notation
The first one is the answer
Answer: 6x + 2y
Step-by-step explanation: