2 is the only right answer. If it has right/left symmetry, then f(-x) = f(x), meaning it's even. extra info: 3 and 4 are the same thing 5 works for odd functions (like sin(x))
Assuming the garden is a rectangular shape, we have four sides, where two sides are 2x + 6 feet and two sides are x + 7 feet. To find the perimeter, we add up the lengths of all four sides.
