What are the x- intercepts?

(0,0) and (4,0)

Step-by-step explanation:

X-intercepts are the points on a graph where the line intersects the x-axis.

your answer is -9

step-by-step explanation:

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.