Which equation matches the table? b=2a b=a-4 b - 1 - a 2. b= a +4​

b = a + 4

Step-by-step explanation:

in 1) a = 4 and b = 8

b = a + 4

8 = 4 + 4

8 = 8

in 2) a = 8 and b = 12

b = a + 4

12 = 8 + 4

12 = 12

in 3) a = 12 and b = 16

b = a + 4

16 = 12 + 4

16 = 16

in 4) a = 16 and b = 20

b = a + 4

20 = 16 +4

20 = 20

therefore, b = a + 4 is the correct equation.