Answer:
k = ½
Equation => 
Step-by-step explanation:
Constant of proportionality (k) = y/x
Using a point on the graph, (6, 3),
k = y/x = 3/6 = ½
k = ½
Equation of the line:
Plug in the value of k into
(slope-intercept form of equation for proportional relationship)
Thus:

Answer:

Step-by-step explanation:
'x = -3', when graphed, passes through the point (-3,7) and (-3,0).
Since the line passes (-3,0), the x-intercept is -3.
(-3, 7) lies on the equation.
I have attached a picture of the graphed equation.
'x = -3' should be the correct answer.
First, you need to find the trend line that you are going to use before you can answer question 9 and 10.
To do that select 2 points from your list and find the y = mx + b equation.
After you have your equation, all you need to do is plug in the values that you are given for x. Evaluate the expression and you will have your answer.
The answer is B
4(4+10)
4*4=16
4*10=40 which will give you (16+40)