Answer:
A
Step-by-step explanation:
It is a function if none of the x-values are the same
36 and 54
54-36=18
54+36= 90
x = 6
y = -6
x + y = 0 (Multiply by -1)
x + 9y= -48
-x - y = 0
8y = -48
x + y = 0
x - 6 = 0
A whole number
because a whole number is a number with no fractions or decimals . it is basically just an integer
2x-x-4+ 6
-3x+6
