Sorry. This problem is botched up because (4, 3) is not a point on the y-axis and thus cannot be a y-intercept. If the problem were either this: What is the equation in slope-intercept form for m=1/2 y-intercept (0, 3)? or this: What is the equation in slope-intercept form for m=1/2 containing the point (4, 3)? it would be answerable. Please repost. Edwin