Zero.
The sum of these angles is 200°. The sum of angles in a triangle must be 180°. These angles cannot be used to form a triangle.
Answer: ORP and ORN are a linear pair.
To find the vertex we need to represent quadratic function in vertex form.
<span>f(x)=(x-8)(x-2)
</span>f(x)=x²-8x-2x+16=x²-10x+16
f(x)= x²-2*5x+25-25+16= (x-5)² - 9
f(x)= (x-5)² - 9
Vertex is going to be (5, - 9)
