1. The problem statement, all variables and given/known data High blood pressure results from constriction of arteries. To maintain a normal flow rate (flux), the heart has to pump harder, thus increasing the blood pressure. Use Poiseille's Law to show that if R0 and P0 are normal value sof the radius and pressure in an artery and the constricted values are R and P, then for the flux to remain constant, P and R are related by the equation P/P0 = (R0/R)^4 Deduce that if the radius of an artery is reduced to three-fourths of its former value, then the pressure is more than tripled. 2. Relevant equations P/P0 = (R0/R)^4 and what I know of Poiseille's Law F = ((pi)(P)(R^4))/((8)(n)(l)) Where R=volume, P=pressure, l=length of blood vessel, F=flux, and n=viscosity of blood 3. The attempt at a solution Firstly, I've worded and formatted the question exactly as listed. I did this because I'm a little confused at what it's even asking me to do. Does it read like there are two parts; 1) Proving P and R are related by the given equation and 2) deducing the given specific relationship between a change in radius and a change in volume? I really don't know where to start. I don't want the answer given to me but any hints on how to get started and what they're really asking me for would be greatly appreciated.