(1,9) and (6,34) What is that slope

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

How many zeros does the function f(x)=4x3-x2+1 have

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that