Which set of ordered pairs does not represent a function? O{(-6, -9), (-2, -3), (-9, 2), (2, -3)}
{(-2,0), (-5, 8), (7,9), (6,8)}
{(6,9).(-7,8), (1, –4), (8,8)}
{(-2,-6), (-1,2), (-2,-7), (6,6)}

we need the options

step-by-step explanation:

the correct is answer is a 9-sided polygon!

f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions