Now draw a line through the yellow center that is perpendicular to the linethat you just drew.111Y-10-9-87-6-5433 4 5 678 9 10-10

Firstly we need to find the equation of the line drawn
The slope intercept form of the line equation is;
[tex]y=mx+b[/tex]where;
m = slope
b = intercept (y axis)
From the graph, we can see that the y intercept is