The function f(x) is to be graphed on a coordinate plane
at what point should an open circle be drawn?
(–1, 0)
(0, 0)
(0, 1)
(1, 0)

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.