Question

Slope 3, (2, 6) how to change to slope intercept form

Answer 1

y=mx+b

m=slope
b=y-intercept

So you know that

y=3x+b

but the y-intercept is unknown, plug in your point

(6)=3(2)+b
6=6+b
b=0

So it's going to be just
y=3x