125% of what is 85.and 350% of what is 679. meee.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11