Answer:
Step-by-step explanation:
Let us write the equations in standard form:
We have
and
Since the eccentricity of this conic is less than 1, the conic represents an ellipse.
The second equation is .
This is a hyperbola, because eccentricity is more than 1.
The third equation is .
This is a parabola, because eccentricity is 1.
The fourth equation is .
This is also a hyperbola, because eccentricity is more than 1.
Answer: OPTION C.
Step-by-step explanation:
The missing options are:
In order to solve this exercise you need to remember the following:
1. The Distributive property states that:
2. The multiplication of signs:
In this case the exercise gives you the following equation:
Since you need to solve for the variable "x" in order to find its value, the first step you must apply in the in the procedure is to eliminate the parentheses applying the Distributive property.
Then, you must multiply everyting inside the parentheses by .
Therefore,based on the explanation, you know that the correct use of the Distributive property is: