Answer:
The correct option is;

Step-by-step explanation:
The given diagram consists of a a starting point, J having a direction passing through the point S and the line has one arrowhead on the right pointing to infinity, which is the symbol for a ray, JS
The denotation of a ray is made by the name of the ray having an overhead arrow as follows;
ray 
Using the velocity formula, it is found that the acceleration is of a = 9.8 m/s².
<h3>What is the velocity formula?</h3>
It is given by the initial velocity plus acceleration multiplied by time, that is:
v(t) = v0 + at.
In this problem, we have that v(0) = 0, t = 2, v(2) = 19.6, hence:
v(t) = v0 + at.
19.6 = 0 + 2a.
2a = 19.6.
a = 19.6/2.
a = 9.8 m/s².
The acceleration is of a = 9.8 m/s².
More can be learned about the velocity formula at brainly.com/question/26408808
Answer: Domain: {2}
Step-by-step explanation:
1. By definition, the domain is the input value, this means that it is the x-value of a function.
2. Therefore, keeping the definition above on mind, you have that the domain of x is the x-value of each ordered pair.
3. Then, given x = {(2, 3), (2, 4), (2, 5), (2, 6)}, you can see that x-value of each ordered pair is 2. Therefore, you can conclude that the domain of x is:
Domain:{2}
3x = -6y + 6 becomes x = -2y + 2 and then you substitute in 5( -2y + 2) + 4y = -14
-10y + 10 + 4y = -14
-6y = -24
6y = 24
y = 4
And then you put y in x = -2(4) + 2 to find x
X = -8 + 2 = -6
x = -6
Then you try in both
5(-6) + 4(4) = - 14 -> -30 + 16 is -14 ✔️
3(-6) + 6(4) = 6 -> -18 + 24 is 6 ✔️