Which of the following functions represents a linear function?

i think the answer is seven, for if i'm being useless °ω°

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.

7x7=4 so if u carry the 9 it will be 33

3.07*10^-4

move the decimal 4 places to the left

.000307