1. The problem statement, all variables and given/known data 2. Relevant equations Req= R1 + R2...Rn for resistors in series. Req= (1/R1 + 1/R2 +... 1/Rn)^(-1) for resistors in paralel And Ohm's Rules for circuits 3. The attempt at a solution I did manage to solve it by using R3= 0 and thus finding R1= 2000 by using Ohm's Rules, then, using R3 going towards infinity, I find R23= R2, and from that I find R2 + R1= 6000. Since R1= 2000, R2= 4000, which is the correct answer. However, when I tried solving by using the point(5, 0.003) from the graph, I have the equation: R1 + (5R2/5+ R2) = 4000. Using R1 = 6000- R2 I get R2^2 -2000R2 - 10000=0. The positive root is 2000. That makes no sense since it inverts R1 and R2. Could someone tell me why it doesn't if I use that point?