Answer:
i think its rational.
Step-by-step explanation:
Answer:
Answer choice C
Step-by-step explanation:
This is the only graph which has a linear equation and starts from 0,0.
Look at your picture
notice the coordinates for the center of the circle, the x,y or h,k values
notice how long the radius is
thus
Three times the square of a number means 
Nine times a number is 
If these quantities must be equal, we have

We can divide both sides by 3 to get

Since x is non-zero, we can divide both sides by x:
