Question 990200
Identify linear points,  (p,A).


(15,1750) and (10,2650).


FINDING THE LINE FOR THOSE TWO POINTS
A=mp+b
b=A-mp
First find {{{m=(2650-1750)/(-5)=900/(-5)=-9*100/5)=-9*20=-160}}}
Now find {{{b=1750-(-160)*15=1750+160*15=9750}}}


{{{highlight(A=-160p+9750)}}}