What is the slope of
y = -2/3x + 9

step-by-step explanation:

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

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x