Answer:
The slope is -0.048/2.000 or -0.024
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
Answer:

Step-by-step explanation:
The directrices of an ellipse are defined by

Where
, and
is the eccentricity defined by 
So, in the first choice, we have the equation

Where
and
, which means
and
.
In an ellipse, we have the relation

Replacing values, we have

So, the eccentricity is
and the directrices are
, which means the first choice is not the right answer. In other words, the right answer is the second choice, because third and fourth choices don't represent an ellipse, both fractions must be positive in that case.
Therefore, the right answer is
