Enter the slope-intercept equation of the line that has the same slope as y − 3 = 1/2 (x + 3) and contains the point (8, 4). Complete the explanation of how you found the equation. y = ; I used the general form of a line in slope-intercept form, or y − y₁ = m(x − x₁) or y = mx + b or ax + by = c . The slope, m, is. Then, I substitutedfor x and for y into the standard form and solved for b, which is .