If x=2 then 2=x what’s the definition

 The symmetric property of equality.

Step-by-step explanation:

The symmetric property of equality says that if a=b, then b=a. Here, we have x substituted for "a" and 2 substituted for "b" to get ...

  if x = 2, then 2 = x.  . . . . . . symmetric property of equality

x=half

step-by-step explanation:

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: