December 24, 2018
Clue #1: The theme of the cache is "Superheroes." Carefully graph the four lines with the follow-
ing equations on the coordinate plane below to see the shape of the item.
y = 2x + 13
Clue #2: The item in the cache is thin, and you can fold it or bend it. Just like the lines you
graphed intersect at four corners, the item also has four corners. The coordinates of the cache lo-
cation correspond to one of the points where the four lines intersect. Identify the coordinates of
the points where each pair of lines intersect. Write your answers as ordered pairs in (x, y) form.
A. Intersection of y = 2x + 13 and x + 2y = -14: (2.3, 8.2)
B. Intersection of y = 2x + 13 and y + -1/2x = 13: (0, 13)