find the slope of the line perpendicular to the line y = ( 1 / 2 ) x - 7
"two lines are perpendicular if the product of their slopes is equal to - 1 . the slope of the given line is equal to 1 / 2 . if m is the slope of the line perpendicular to the given line , then m × ( 1 / 2 ) = - 1 solve for m m = - 2 correct answer c ) - 2"
divide(1, 2)