Answer:
y = 18/11 x + 45/11
Explanation:
Slope-intercept form is: y = mx + b
Let's use point (3, 9) as (x_1, y_1).
x_1 = 3; y_1 = 9
The slope, 18/11, is correct, so m = 18/11.
y - y_1 = m(x - x_1)
y - 9 = (18/11)(x - 3)
y = 18/11 x - 3(18/11) + 9
y = 18/11 x - 54/11 + 99/11
y = 18/11 x + 45/11