To answer the question we start by placing two ordered pairs that satisfy the equation 
To do this we enter a value of "x" and then find "y"
Let's start with 


Then the first ordered pair that satisfies the equation is dot (2,4)
Now, for 

Then the second ordered pair that satisfies the equation is the point (0,0).
With these two pairs we draw the graph of the equation, which is shown in the attached image.
Inscribed Quadrilateral Theorem says that quadrilateral can be inscribed in a circle if and only if the opposite angles are supplementary.
That means
∠C+∠A=180⁰
∠B+∠D=180⁰
So, ∠C+∠A=180⁰ ---->84 + x = 180 ------> x=180-84=96⁰.
Answer: x=96⁰.
Answer:
40% is what i think it is
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