What is the slope of the line perpendicuar

Question

Answer 1

First pick two points from the graph that you are 100% sure that are on the line.

For example: (0,8) and (3, -9)

Then using those two to find the slope of the line on the graph

Slope (m) formula:

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

From the first point:

x1=0, y1=8

For the second point:

x2=3 and y2 = -9

plug those in:

m= (-9-8) / (3-0)

m= -17 / 3

let that be m₁= -17/3

And then, in order to find the slope to a line perpendicular to this one, we need to know the relation between their slopes which is negative reciprocals:

m₂= -1/ m₁

So, the final answer:

m₂= -1 / (-17/3)

m₂= 3/17