If the slope-intercept form of the line through (0,5) and perpendicular to the line 3y+4x=7 is y=mx+b, find m⋅b.
3y+4x=7 slope = -4/3 perpindicular is - 1 / (-4/3) = 3/4
point slope form with the point given y-5 = 3/4 (x-0)
re-arrange
y = 3/4 x + 5
y = 3/4 x + 5 3/4 * 5 = .........
