Answer:
x=8
Step-by-step explanation:
5x+6+134=180
5x=40
-y + 9 = 23
-y = 23 - 9
-y = 14
-1 x (-y) = -1 x 14
y = -14
ANSWER: C
its a function because each input (X) only has one output (y)
domain (3,-1,7,0)
range (2)
