Step-by-step explanation:
Hello!
For this you multiply the numbers that intersect at that box
Box A 2x and 4 intersect
2x * 4 = 8x
Box B 3 and 4 intersect
3 * 4 = 12
Box C 2x and x intersect
2x * x = 
Box D 3 and x intersect
3 * x = 3x
To solve this we put all these together

Combine like terms

Hope this helps!
Place the x values (if there are two of the same x value you only include it once) in the first box vertically like:
5
-3
6
2
Place the y values (if there are two of the same y values only include it once) in the 2nd box vertically like:
1.2
7
-3
Now draw lines from your x values to their corresponding y values.
A function may NOT have two y-values assigned to the same x-value, but it may have two x-values assigned to the same y-value.
So this is a function!
Answer:
22
Step-by-step explanation:
2x -6 = 38
Add 6 to each side
2x-6+6 = 38+6
2x + 44
Divide each side by 2
2x/2 = 44/2
x = 22
Closed, because it’s included (has Or Equal To)