Answer:
paralelogram.
Step-by-step explanation:
Make a graph, plot the points and draw lines connecting them. Make your own conclusion because I cant write this for you. :)
I would use length for this
The point
is on the graph of the equation.
Explanation:
The equation is 
We need to determine the point
is on the graph.
To determine the point
is on the graph, we need to substitute the point in the equation and find whether the LHS is equal to RHS.
Thus, substituting the point
in the equation
, we get,

Multiplying the terms within the bracket, we have,

Adding the LHS, we have,

Thus, both sides of the equation are equal.
Hence, the point
is on the graph of the equation 
Its not theres two y for the same x (3)
Answer: (-2,2), (-8,-1)
Step-by-step explanation: