You can put this solution on YOUR website! Y=4X+8 (RED LINE)
a line through (4,3) with a slope=4 is:
b=-13 answer for the y intercept.
thus the equation is:
Y=4X-13 (GREEN LINE).
(graph 300x200 pixels, x from -6 to 5, y from -15 to 10, of TWO functions 4x +8 and 4x -13).