One way of solving this is simply by substituting for each x in the table into each formula to see if you get the corresponding y in the table
so if x is 1, then in the first equation -> y = 1-2(1) = y= 1-2 = -1 so right off the bat, we found the right equation but essentially you should do it until you find the one that fits
We know that the area of a circle is so we can take that equation and divide it by two to get your answer. So in this case it would be . Hope this helps!
