A(5,5), m = 3
I assume you want to write an equation of a line using the point (5 , 5) and a slope = 3 ???? If so, we have.......
y - 5 = 3 (x - 5) simplify
y - 5 = 3x - 15 add 5 to both sides
y = 3x - 10
And that's in slope-intercept form.....