Question

The slope of any line perpendicular to AB, where A(0, -3) and B(4, 9) are two points on the line, is m = -3 -1/3 3 -3 -1/3 3

Answer 1

-1/3

Explanation:

When slopes are perpendicular it means it's the opposite of the slope

The opposite of the slope of line AB is -1/3

Answer 2

m = -1/3

Explanation:

First find the slope using

m= (y2-y1)/(x2-x1)

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

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

= 12/4

= 3

We want the slope that is perpendicular Perpendicular slopes multiply to -1

m * 3 = -1

m * 3 /3 = -1/3

m = -1/3