Y = -4/3x -1/2 , perpendicular slopes are opposite reciprocals
That would be -20. a negative divided by a negative number is positive, positive divided by negative is negative bc even numbers of negatives make it positive. and ofc 20 x 5 = 100, hence the ‘20’
M=-1/2 because you do y1-y2 over x1-x2 and end up with 2/-4 but simplified is -1/2
