Use the graph of the function y=-1/2 x2+x+4 to answer the question

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

True or false? a circle could be circumscribed about the quadrilateral below.