Function and lines give the location of Berlin as an ordered pair (x, y,)

Answer this question only if you know the answer! 30 points and

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?