Question

Need the answer. MEDAL FOR REWARD


The slope of any line perpendicular to , where A(0, -3) and B(4, 9) are two points on the line, is m =

-3
-1/3
3

Answer 1

m = (y2 - y1)/(x2-x1) where (x2,y2) = A and B = (x1, y1)

Answer 2

IS THE ANSWER NUMBER 1 ?

Answer 3

9-(-3)/4-0 = 3

Answer 4

thanks