4. Is the graph an example of direct variation? If so, what is the constant of variation?

C) yes, 2

Step-by-step explanation:

A direct variation means that the graph is a straight line. In this case it is:

Yes, the graph is an example of direct variation.

To find the constant of variation, you can use the formula:

y =

Now, substitute the x- and y-variables for a given point:

1 =

Finally, solve for k:

1 =

k = 2

The constant of variation is 2.

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.