Answer:
The answer is "y= x is an asymptote and y =is a directrix'.
Explanation:
In this, question a diagram is attached, that defines the details about the hyperbola. In this question option a and option d is correct, which can be described as follows:
In the first option, y =x is an asymptote, when the value of y is increasing then the value of x is also increase.
In the last option, y is directrix that's why it is also correct.
Therefore, The answer is "y= x is an asymptote and y =is a directrix'.