Which equation represents the line that passes through the point (4,2) and is perpendicular to the line represented by the equation y=-1/2x +3

Answer 1

perp's slope = 2, the negative inverse of -1/2

through (4,2) has equation of the line throught that point with slope 2 as

y -2 = 2(x-4) = 2x -8

y = 2x -6 in slope intercept form

or

2x -y = 6 in standard form