Question

PLEASE HELP!!!

Answer 1

you would set the problem up and the answer will be 3 if you need me to explain it more comment down below

Answer 2

You would set the problem into slope-interslope form : y = mx + b.
Slope (m) = rate of change           b = y-intercept
Therefore, your in the above:
m =  3
b = 0
The constant proportionality (slope) is 3 and the y-intercept is 0.