Answer:
x = 0.6y.
Step-by-step explanation:
x = ky is direct variation where k is some constant;
Now we find k:-
Substituting for x and y:
9 = k*15
k = 9/15 = 0.6
So the equation is
x = 0.6y.
For

, we have

So for

to be continuous at

, we require that the limit as

is equal to 4.
Answer:
y=5 is the correct answer
Step-by-step explanation:
it would be paralell because the x variable goes across in a straight line