What compound inequality describes this graph

Step-by-step explanation:

The graph shows a conjunction. Meaning, both statements of the compound inequality are true.

The empty circle shows that the values of x do not include 3 and 4. This means that x is greater than 3 and x is less than 4.

The compound inequality would be written as:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18